1 Physics And Measurement 2 Motion In One Dimension 3 Vectors 4 Motion In Two Dimensions 5 The Laws Of Motion 6 Circular Motion And Other Applications Of Newton’s Laws 7 Energy Of A System 8 Conservation Of Energy 9 Linear Momentum And Collisions 10 Rotation Of A Rigid Object About A Fixed Axis 11 Angular Momentum 12 Static Equilibrium And Elasticity 13 Universal Gravitation 14 Fluid Mechanics 15 Oscillatory Motion 16 Wave Motion 17 Sound Waves 18 Superposition And Standing Waves 19 Temperature 20 The First Law Of Thermodynamics 21 The Kinetic Theory Of Gases 22 Heat Engines, Entropy, And The Second Law Of Thermodynamics 23 Electric Fields 24 Gauss’s Law 25 Electric Potential 26 Capacitance And Dielectrics 27 Current And Resistance 28 Direct-current Circuits 29 Magnetic Fields 30 Sources Of The Magnetic Field 31 Faraday’s Law 32 Inductance 33 Alternating Current Circuits 34 Electromagnetic Waves 35 The Nature Of Light And The Principles Of Ray Optics 36 Image Formation 37 Wave Optics 38 Diffraction Patterns And Polarization 39 Relativity Chapter2: Motion In One Dimension
Chapter Questions Section: Chapter Questions
Problem 2.2QQ: Are officers in the highway patrol more interested in (a) your average speed or (b) your... Problem 2.3QQ: Make a velocitytime graph for the car in Figure 2.1a. Suppose the speed limit for the road on which... Problem 2.4QQ: If a car is traveling eastward and slowing down, what is the direction of the force on the car that... Problem 2.5QQ: Which one of the following statements is true? (a) If a car is traveling eastward, its acceleration... Problem 2.6QQ: In Figure 2.12, match each vxt graph on the top with the axt graph on the bottom that best describes... Problem 2.7QQ: Consider the following choices: (a) increases, (b) decreases, (c) increases and then decreases, (d)... Problem 2.1OQ: One drop of oil falls straight down onto the road from the engine of a moving car every 5 s. Figure... Problem 2.2OQ: A racing car starts from rest at t = 0 and reaches a final speed at time t. II the acceleration of... Problem 2.3OQ: A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is... Problem 2.4OQ: When applying the equations of kinematics for an object moving in one dimension, which of the... Problem 2.5OQ: A cannon shell is fired straight up from the ground at an initial speed of225 m/s. After how much... Problem 2.6OQ: An arrow is shot straight up in the air at an initial speed of 15.0 m/s. After how much time is the... Problem 2.7OQ: When the pilot reverses the propeller in a boat moving north, the boat moves with an acceleration... Problem 2.8OQ: A rock is thrown downward from the top of a 40.0-in-tall tower with an initial speed of m/s.... Problem 2.9OQ: A skateboarder starts from rest and moves down a hill with constant acceleration in a straight line,... Problem 2.10OQ: Oil another planet, a marble is released from rest at the top of a high cliff It Jails 4.00 m in the... Problem 2.11OQ: As an object moves along the .v axis, many measurements are made of its position, enough to generate... Problem 2.12OQ: A pebble is dropped from rest from the lop of a tall cliff and falls 4.9 m after 1.0 s has elapsed.... Problem 2.13OQ: A student at the top of a building of height h throws one ball upward with a speed of i and then... Problem 2.14OQ: Von drop a ball from a window located on an upper floor of a building. It strikes the ground with... Problem 2.15OQ: A pebble is released from rest at a certain height and falls freely, reaching an impact speed of 4... Problem 2.16OQ: A ball is thrown straight up in the air. For which situation are both the instantaneous velocity and... Problem 2.17OQ: A hard rubber ball, not affected by air resistance in its motion. is tossed upward from shoulder... Problem 2.18OQ: Each of the strobe photographs (a), (b). and (c) in Figure OQ2.18 was taken of a single disk moving... Problem 2.1CQ: If the average velocity of an object is zero in some time interval, what can you say about the... Problem 2.2CQ: Try the following experiment away from traffic: where you can do it Safely. With the car VOU are... Problem 2.3CQ Problem 2.4CQ Problem 2.5CQ Problem 2.6CQ: You throw a ball vertically upward so that it leaves the ground with velocity +5.00 m/s. (a) What is... Problem 2.7CQ: (a) Can (he equations of kinematics (Eqs. 2.13-2.17) be used in a situation in which the... Problem 2.8CQ: (a) Can the velocity of an object at an instant of time be greater in magnitude than the average... Problem 2.9CQ: Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the... Problem 2.1P: Section 2.1 Position, Velocity, and Speed The position versus time for a certain particle moving m... Problem 2.2P: The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub your toe... Problem 2.3P: A prison walks first al a constant speed of 5.00 m/s along a straight line from point to point and... Problem 2.4P: A particle moves according to the equation x = 10t2, where x is in meters and t is in seconds. (a)... Problem 2.5P: The position of a pinewood derby car was observed at various times; the results are summarized in... Problem 2.6P: The position of a particle moving along the x axis varies in time according to the expression x =... Problem 2.7P: A positiontime graph for a particle moving along the x axis is shown in Figure P2.5. (a) Find the... Problem 2.8P: An athlete leaves one end of a pool of length L at t = 0 and arrives at the other end at time t1.... Problem 2.9P: Find the instantaneous velocity of the particle described in Figure P2.1 at the following times: (a)... Problem 2.10P: Review. The North American and European plates of the Earths crust are drifting apart with a... Problem 2.11P: A hare and a tortoise compete in a race over a straight course 1.00 km long. The tortoise crawls at... Problem 2.12P: A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then... Problem 2.13P: A person takes a trip, driving with a constant speed of 89.5 km/h, except for a 22.0-min rest stop.... Problem 2.14P: Review. A 50.0-g Super Ball traveling al 25.0 m/s bounces of a brick wall and rebounds at 22.0 m/s.... Problem 2.15P: A velocity-time graph for an object moving along the x axis is shown in Figure P2.15. (a) Plot a... Problem 2.16P: A child rolls a marble on a bent track that is 100 cm long as shown in Figure P2.8. We use x to... Problem 2.17P: Figure P2.9 shows a graph of vx versus t for the motion of a motorcyclist as he starts from rest and... Problem 2.18P: (a) Use the data in Problem 3 to construct a smooth graph of position versus time. (b) By... Problem 2.19P: A particle starts from rest and accelerates as shown in Figure P2.11. Determine (a) the particles... Problem 2.20P: An object moves along the x axis according to the equation x = 3.00t 2 - 2.00t + 3.00, where x is in... Problem 2.21P: A panicle mows along the x axis according to the equation x = 2.00 + 3.00t - 1.00t2, where x is in... Problem 2.22P: Draw motion diagrams for (a) an object moving to the right at constant speed, (b) an object moving... Problem 2.23P: Each of the strobe photographs (a), (b), and (c) in Figure P2.13 was taken of a single disk moving... Problem 2.24P: The minimum distance required to stop a car moving at 35.0 mi/h is 40.0 ft. What is the minimum... Problem 2.25P: An electron in a cathode-ray tube accelerates uniformly from 2.00 104 m/s to 6.00 106 m/s over... Problem 2.26P: A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 100 m ahead. The pilot slows the... Problem 2.27P: A parcel of air moving in a straight tube with a constant acceleration of 4.00 m/s2 has a velocity... Problem 2.28P: A truck covers 40.0 m in 8.50 s while smoothly slowing down to a final speed of 2.80 m/s. (a) Find... Problem 2.29P: An object moving with uniform acceleration has a velocity of 12.0 cm/s in the positive x direction... Problem 2.30P: In Example 2.7, we investigated a jet landing on an aircraft carrier. In a later maneuver, the jet... Problem 2.31P Problem 2.32P: Solve Example 2.8 by a graphical method. On the same graph, plot position versus time for the car... Problem 2.33P: A truck on a straight road starts from rest, accelerating at 2.00 m/s2 until it reaches a speed of... Problem 2.34P: Why is the following situation impossible? Starting from rest, a charging rhinoceros moves 50.0 m in... Problem 2.35P: The driver of a car slants on the brakes when he sees a tree blocking the road. The car slows... Problem 2.36P Problem 2.37P: A speedboat travels in a straight line and increases in speed uniformly from i = 20.0 m/s to f =... Problem 2.38P: A particle moves along the x axis. Its position is given by the equation x = 2 + 3t 4t2, with x in... Problem 2.39P: A glider of length moves through a stationary photogate on an air track. A photogate (Fig. P2.19)... Problem 2.40P: A glider of length 12.4 cm moves on an air track with constant acceleration (Fig P2.19). A time... Problem 2.41P: An object moves with constant acceleration 4.00 m/s2 and over a lime interval reaches a final... Problem 2.42P: At t = 0, one toy car is set rolling on a straight track with initial position 15.0 cm, initial... Problem 2.43P: Figure P2.43 represents part of the performance data of a car owned by a proud physics student, (a)... Problem 2.44P: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a... Problem 2.45P: In Chapter 9, we will define the center of mass of an object and prove that its motion is described... Problem 2.46P: An attacker at the base of a castle wall 3.65 m high throws a rock straight up with speed 7.40 m/s... Problem 2.47P: Why is the following situation impossible? Emily challenges David to catch a 1 bill as follows. She... Problem 2.48P: A baseball is hit so that it travels straight upward after El being struck by the bat. A fan... Problem 2.49P: It is possible to shoot an arrow at a speed as high as 100 m/s. (a) If friction can be ignored, how... Problem 2.50P: The height of a helicopter above the ground is given by h = 3.00t5, where h is in meters and t is in... Problem 2.51P Problem 2.52P: A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant,... Problem 2.53P: A student throws a set of keys vertically upward to her sorority sister, who is in a window 4.00 m... Problem 2.54P: At time t = 0, a student throws a set of keys vertically upward to her sorority sister, who is in a... Problem 2.55P: A daring ranch hand sitting on a tree limb wishes to drop vertically onto a horse galloping under... Problem 2.56P: A package is dropped at time t = 0 from a helicopter that is descending steadily at a speed i. (a)... Problem 2.57P: Automotive engineers refer to the time rate of change of acceleration as the jerk. Assume an object... Problem 2.58P: A student drives a moped along a straight road as described by the velocitytime graph in Figure... Problem 2.59P: The speed of a bullet as it travels down the barrel of a rifle toward the opening is given by =... Problem 2.60AP: A certain automobile manufacturer claims that its deluxe sports car will accelerate from rest to a... Problem 2.61AP: The froghopper Philaenus spumarius is supposedly the best jumper in the animal kingdom. To start a... Problem 2.62AP: An object is at x = 0 at t = 0 and moves along the x axis according to the velocity-time graph in... Problem 2.63AP: Ail inquisitive physics student and mountain climber climbs a 50.0-m-high cliff that overhangs a... Problem 2.64AP: In Figure 2.11b, the area under the velocitytime graph and between the vertical axis and time t... Problem 2.65AP: A ball starts from rest and accelerates at 0.5(H) m/s2 while moving down an inclined plane 9.00 m... Problem 2.66AP: A woman is reported to have fallen 144 ft from the 17th floor of a building, landing on a metal... Problem 2.67AP: An elevator moves downward in a tall building at a constant speed of 5.00 m/s. Exactly 5.00 s after... Problem 2.68AP: Why is the following situation impossible? A freight train is lumbering along at a constant speed of... Problem 2.69AP: The Acela is an electric train on the Washington-New YorkBoston run, carrying passengers at 170... Problem 2.70AP: Two objects move with initial velocity 8.00 m/s, final velocity 16.0 m/s. and constant... Problem 2.71AP: At t = 0, one athlete in a race running on a long, straight track with a constant speed v1 is a... Problem 2.72AP: A catapult launches a test rocket vertically upward from a well, giving the rocket an initial speed... Problem 2.73AP: Kathy tests her new sports car by racing with Sian, an experienced racer. Both start from rest, but... Problem 2.74AP: Two students are on a balcony a distance h above the street. One student throws a ball vertically... Problem 2.75AP: Two objects, A and B, are connected by hinges to a rigid rod that has a length L. The objects slide... Problem 2.76AP: Astronauts on a distant planet toss a rock into the air. With the aid of a camera that takes... Problem 2.77AP: A motorist drives along a straight road at a constant speed of 15.0 m/s. Just as she passes a parked... Problem 2.78AP: A commuter train travels between two downtown stations. Because the stations are only 1.00 km apart,... Problem 2.79AP: Lisa rushes down onto a subway platform to find her train already departing. She stops and watches... Problem 2.80AP: A hard rubber ball, released at chest height, falls to the pavement and bounces back to nearly the... Problem 2.81CP: A blue car of length 4.52 m is moving north on a roadway (hat intersects another perpendicular... Problem 2.82CP: Review. As soon as a traffic light turns green, a car speeds up from rest to 50.0 mi/h with constant... Problem 2.83CP: In a womens 100-m race, accelerating uniformly, Laura takes 2.00 s and Healan 3.00 s to attain their... Problem 2.84CP: Two thin rods are fastened to the inside of a circular ring as shown in Figure P2.42. One rod of... Problem 2.85CP: A man drops a rock into a well, (a) The man hears the sound of the splash 2.40 s after he releases... Problem 2.15OQ: A pebble is released from rest at a certain height and falls freely, reaching an impact speed of 4...
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I keep on getting to a point where I have angular acceleration but I don't know how to solve from there.
Transcribed Image Text: Block 1 with mass mį = 4.28 kg rests on a horizontal ledge with negligible friction. This block is then attached to a string that passes
over a pulley, and the other end of the string is attached to the hanging block 2 of mass m2 = 2.14 kg, as shown.
1
The pulley is a uniform disk of radius 10.35 cm and mass 1.58 kg.
Transcribed Image Text: 1
Calculate the speed of block 2 after it is released from rest and falls a distance of 2.82 m.
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v =
2
Definition Definition Rate of change of angular velocity. Angular acceleration indicates how fast the angular velocity changes over time. It is a vector quantity and has both magnitude and direction. Magnitude is represented by the length of the vector and direction is represented by the right-hand thumb rule. An angular acceleration vector will be always perpendicular to the plane of rotation. Angular acceleration is generally denoted by the Greek letter α and its SI unit is rad/s 2 .
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