1 Doing Physics 2 Motion In A Straight Line 3 Motion In Two And Three Dimensions 4 Force And Motion 5 Using Newton's Laws 6 Energy, Work, And Power 7 Conservation Of Energy 8 Gravity 9 Systems Of Particles 10 Rotational Motion 11 Rotational Vectors And Angular Momentum 12 Static Equilibrium 13 Oscillatory Motion 14 Wave Motion 15 Fluid Motion 16 Temperature And Heat 17 The Thermal Behavior Of Matter 18 Heat, Work, And The First Law Of Thermodynamics 19 The Second Law Of Thermodynamics expand_more
4.1 The Wrong Question 4.2 Newton's First And Second Laws 4.3 Forces 4.4 The Force Of Gravity 4.5 Using Newton's Second Law 4.6 Newton's Third Law Chapter Questions expand_more
Problem 1FTD: Distinguish the Aristotelian and Galilean/New Ionian views of the natural stale of motion. Problem 2FTD: A ball bounces off a wall with the same speed it had before it hit the wall. Has its momentum... Problem 3FTD: We often use the term inertia to describe human sluggishness. How is this usage related to the... Problem 4FTD: Does a body necessarily move in the direction of the net force acting on it? Problem 5FTD: A truck crashes into a stalled car. A student trying to explain the physics of this event claims... Problem 6FTD: A barefoot astronaut kicks a ball, hard, across a space station. Does the balls apparent... Problem 7FTD: In paddling a canoe, you push water backward with your paddle. What force actually propels the canoe... Problem 8FTD: Is it possible for a nonzero net force to act on an object without the objects speed changing?... Problem 9FTD: As your plane accelerates down the runway, you take your keys from your pocket and suspend them by a... Problem 10FTD: A driver tells passengers to buckle their seatbelts, invoking the law of inertia. Whats that got to... Problem 11E: Section 4.2 Newtons First and Second Laws A subway trains mass is 1.5106 kg. What force is required... Problem 12E Problem 13E: A small plane accelerates down the runway at 7.2 m/s2. If its propeller provides an 11-kN force,... Problem 14E: A car leaves the road traveling at 110 km/h and hits a tree, coming to a stop in 0.14 s. What... Problem 15E: Kinesin is a motor protein responsible for moving materials within living cells. If it exerts a... Problem 16E: Starting from rest and undergoing constant acceleration, a 940-kg racing car covers 400 m in 4.95 s.... Problem 17E: In an egg-dropping contest, a student encases an 85-g egg in a large Styrofoam block. If the force... Problem 18E: In a front-end collision, a 1300-kg car with shock-absorbing bumpers can withstand a maximum force... Problem 19E: Show that the units of acceleration can be written as N/kg. Why does it make sense to give g as 9.8... Problem 20E: Your spaceship crashes on one of the Suns planets. Fortunately, the ships scales are intact and show... Problem 21E: Your friend can barely lift a 35-kg concrete block on Earth. How massive a block could she lift on... Problem 22E: A cereal box says net weight 340 grams. Whats the actual weight (a) in SI units and (b) in ounces? Problem 23E: Youre a safely engineer for a bridge spanning the U.S.-Canadian border. U.S. specifications permit a... Problem 24E: The gravitational acceleration at the International Space Stations altitude is about 89% of its... Problem 25E: A 50-kg parachutist descends at a steady 40 km/h. What force does air exert on the parachute? Problem 26E: A 930-kg motorboat accelerates away from a dock at 2.3 m/s2. Its propeller provides a 3.9-kN thrust... Problem 27E: An elevator accelerates downward at 2.4 m/s2. What force does the elevators floor exert on a 52-kg... Problem 28E: At 560 metric tons, the Airbus A-380 is the worlds largest air-liner. Whats the upward force on an... Problem 29E: Find an expression for the thrust (force) of a model rocket’s engine required to accelerate a... Problem 30E: You slop into an elevator, and it accelerates to a downward speed of 9.2 m/s in 2.1 s.... Problem 31E: What upward gravitational force does a 5600-kg elephant exert on Earth? Problem 32E: Your friends mass is 65 kg. If she jumps off a 120-cm-high table, now far does Earth move toward her... Problem 33E: What force is necessary to stretch a spring 48 cm, if its spring constant is 270 N/m? Problem 34E: A 35-N force is applied to a spring with spring constant k = 220 N/m. How much does the spring... Problem 35E: A spring with spring constant k = 340 N/m is used to weigh a 6.7-kg fish. How far does the spring... Problem 36E Problem 37E Problem 38E Problem 39E Problem 40E Problem 41E Problem 42E: Example 4.3: In the 2015 film The Martian, actor Matt Damon (mass 84.0 kg) plays an astronaut who’s... Problem 43E Problem 44P: A 166-g hockey puck is gliding across the ice at 44.3 m/s. A player whacks it with her stick,... Problem 45P: An airplane encounters sudden turbulence, and you feel momentarily lighter. If your apparent weight... Problem 46P: A 74-kg tree surgeon rides a cherry picker lift to reach the upper branches of a tree. What force... Problem 47P: A dancer executes a vertical jump during which the floor pushes up on his feet with a force 50%... Problem 48P: Find expressions for the force needed to bring an object of mass m from rest to speed v (a) in lime... Problem 49P: An elevator moves upward at 5.2 m/s. Whats its minimum stopping time if the passengers are to remain... Problem 50P: A 2.50-kg object is moving along the x-axis at 1.60 m/s. As it passes the origin, two forces F1 and... Problem 51P: Blocks of 1.0, 2.0, and 3.0 kg are lined up on a frictionless table, as shown in Fig. 4.22, with a... Problem 52P: A child pulls an 11-kg wagon with a horizontal handle whose mass is 1.8 kg, accelerating the wagon... Problem 53P: Biophysicists use an arrangement of laser beams called optical tweezers to manipulate microscopic... Problem 54P: A force F is applied to a spring of spring constant k0, stretching it a distance x. Consider the... Problem 55P: A 22(M)-kg airplane pulls two gliders, the first of mass 310 kg and the second of mass 260 kg, down... Problem 56P: A biologist is studying the growth of rats on the Space Station. To determine a rats mass, she puts... Problem 57P: A small car, with mass 945 kg, is stuck on frictionless ice. A low truck hooks a 122-kg chain to... Problem 58P: A 2.0-kg mass and a 3.0-kg mass are on a horizontal friction-less surface, connected by a massless... Problem 59P: Youre an automotive engineer designing the crumple zone of a new carthe region that compresses as... Problem 60P: Frogs tongues dart out to catch insects, with maximum tongue accelerations of about 250 m/s2. What... Problem 61P: Two large crates, with masses 640 kg and 490 kg, are connected by a stiff, massless spring (k = 8.1... Problem 62P: Your engineering firm is asked to specify the maximum load for the elevators in a new building. Each... Problem 63P: With its fuel tanks half full, an F-35A jet fighter has mass 18 Mg and engine thrust 191 kN. An... Problem 64P: Two springs have the same unstretched length but different spring constants, k1 and k2. (a) If... Problem 65P: Although we usually write Newtons second law for one-dimensional motion in the form F = ma, which... Problem 66P: A railroad car is being pulled beneath a grain elevator that dumps grain at the rate of 450 kg/s.... Problem 67P: A block 20% more massive than you hangs from a rope that goes over a frictionless, massless pulley.... Problem 68P: Figure 4.27 shows vertical accelerometer data from an iPhone that was dropped onto a pillow. The... Problem 69P: A hockey stick is in contact with a 165-g puck for 22.4 ms; during this time, the force on the puck... Problem 70P: After parachuting through the Martian atmosphere, the Mars Science Laboratory executed a complex... Problem 71P: Your airplane is caught in a brief, violent downdraft. To your amazement, pretzels rise vertically... Problem 72P:
A hot-air balloon and its basket are accelerating upward at 0.265 m/s2, propelled by a net upward... Problem 73P: Two masses are joined by a massless string. A 30-N force applied vertically to the upper mass gives... Problem 74P: A mass M hangs from a uniform rope of length L and mass m. Find an expression for the rope tension... Problem 75P: Jerk is the rate of change of acceleration, and its what can make you sick on an amusement park... Problem 76PP: Laptop computers are equipped with accelerometers that sense when the device is dropped and then put... Problem 77PP: Laptop computers are equipped with accelerometers that sense when the device is dropped and then put... Problem 78PP: Laptop computers are equipped with accelerometers that sense when the device is dropped and then put... Problem 79PP: Laptop computers are equipped with accelerometers that sense when the device is dropped and then put... format_list_bulleted