Problem 1WUE: Math Review Solve the quadratic equation 2.00t2 6 00t 9.00 = 0 using the quadratic formula,... Problem 2WUE: Math Review Solve the following two equations for (a) the time t, and (b) the position, x. Assume SI... Problem 3WUE: Math Review Solve the following two equations for (a) the (positive) time t, and (b) the position x.... Problem 4WUE: A football player runs from his own goal line to the opposing teams goal line, returning to the... Problem 5WUE: A ball is thrown downward from the top of a 40.0 m tower with an initial speed of 12.0 m/s. Assuming... Problem 6WUE: 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 7WUE: A red ball is dropped from rest at a height of 6.00 m. A blue ball at a height of 10.0 m is thrown... Problem 1CQ: If the velocity of a particle is nonzero, can the particles acceleration be zero? Explain. Problem 2CQ: If the velocity of a particle is zero, can the particles acceleration be nonzero? Explain. Problem 3CQ: If a car is traveling eastward, can its acceleration be westward? Explain. Problem 4CQ: (a) Can the equations in Table 2.4 be used in a situation where the acceleration varies with time?... Problem 5CQ: Two cars are moving in the same direction in parallel lanes along a highway. At some instant, the... Problem 6CQ: Figure CQ2.6 shows strobe photographs taken of a disk moving from left to right under different... Problem 7CQ: (a) Can the instantaneous velocity of an object at an instant of time ever be greater in magnitude... Problem 8CQ: A ball is thrown vertically upward. (a) What are its velocity and acceleration when it reaches its... Problem 9CQ: Consider the following combinations of signs and values for the velocity and acceleration of a... Problem 10CQ: A ball rolls in a straight line along the horizontal direction. Using motion diagrams (or multi... Problem 11CQ: An object moves along the x-axis, its position given by x(t) = 2t2. Which of the following cannot be... Problem 12CQ: A ball is thrown straight up in the air. For which situation are both the instantaneous velocity and... Problem 13CQ: A juggler throws a bowling pin straight up in the air. After the pin leaves his hand and while it is... Problem 14CQ: A racing car starts from rest and reaches a final speed v in a time t. If the acceleration of the... Problem 1P: The speed of a nerve impulse in the human body is about 100 m/s. If you accidentally stub your toe... Problem 2P: Light travels at a speed of about 3 103 m/s. (a) How many miles down a pulse of light travel in a... Problem 3P: A person travels by car from one city to another with different constant speeds between pairs of... Problem 4P: The current indoor world record time in the 200-m race is 19.92 s, held by Frank. Fredericks of... Problem 5P: Two boats start together and race across a 60-km-wide lake and back. Boat A goes across at 60 km/h... Problem 6P: A graph of position versus time for a certain particle moving along the x-axis is shown in Figure... Problem 7P: A motorist drives for 35.0 minutes at 85.0 km/h and then stops for 15.0 minutes. He then continues... Problem 8P: A tennis player moves in a straight-line path as shown in Figure P2.8. Find her average velocity in... Problem 9P: A jet plane has a takeoff speed of v0 = 75 m/s and can move along the runway at an average... Problem 10P: Two cars travel in the same direction along a straight highway, one at a constant speed of 55 mi/h... Problem 11P: The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a... Problem 12P: An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting... Problem 13P: A person lakes a trip, driving with a constant speed of 89.5 km/h, except, for a 22.0-min rest stop.... Problem 14P: A tortoise can run with a speed of 0.10 m/s, and a hare can run 20 times as fast. In a race, they... Problem 15P: To qualify for the finals in a racing event, a race car must achieve an average speed of 250. km/h... Problem 16P Problem 17P: A graph of position versus time for a certain particle moving along the x-axis is shown in Figure... Problem 18P: A race car moves such that, its position fits the relationship x = (5.0 m/s)t + (0.75 m/s3)t3 where... Problem 19P: Runner A is initially 4.0 mi west of a flagpole and is running with a constant velocity of 6.0 mi/h... Problem 20P: A particle starts from rest and accelerates as shown in Figure P2.20. Determine (a) the particles... Problem 21P: A 50.0-g Super Ball traveling at 25.0 m/s bounces off a brick will and rebounds at 22.0 m/s. A... Problem 22P: The average person passes out at an acceleration of 7g (that is, seven times the gravitational... Problem 23P: A certain car is capable of accelerating at a rate of 0.60 m/s2. How long does it take for this car... Problem 24P: The velocity vs. time graph for an object moving along a straight path is shown in Figure P2.21. (i)... Problem 25P: A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a... Problem 26P: PROBLEM A race car starting from rest accelerates at a constant rate of 5.00 m/s2, (a) What is the... Problem 27P: An object moving with uniform acceleration has a velocity of 12.0 cm/s in the positive x-direction... Problem 28P: In 1865 Jules Verne proposed sending men to the Moon by firing a space capsule from a 220-m-long... Problem 29P: A truck covers 40.0 m in 8.50 s while uniformly slowing down to a final velocity of 2.80 m/s. (a)... Problem 30P: A speedboat increases its speed uniformly from vi = 20.0 m/s to Vf = 30.0 m/s in a distance of 2.00 ... Problem 31P: A Cessna aircraft has a liftoff speed of 120. km/h. (a) What minimum constant acceleration does the... Problem 32P: An object moves with constant acceleration 4.00 m/s2 and over a time interval reaches a final... Problem 33P: In a test run, a certain car accelerates uniformly from zero to 24.0 m/s in 2.95 s. (a) What is the... Problem 34P: A jet plane lands with a speed of 100 m/s and can accelerate at a maximum rate of 5.00 m/s2 as it... Problem 35P: Speedy Sue, driving at 30.0 m/s, enters a one-lane tunnel. She then observes a slow-moving van 155 m... Problem 36P: A record of travel along a straight path is as follows: 1. Start from rest with a constant... Problem 37P: A train is traveling down a straight track at 20 m/s when the engineer applies the brakes, resulting... Problem 38P: A car accelerates uniformly from rest to a speed of 40.0 mi/h in 12.0 s. Find (a) the distance the... Problem 39P: A car starts from rest and travels for 5.0 s with a uniform acceleration of +1.5 m/s2. The driver... Problem 40P: A car starts from rest and travels for t1 seconds with a uniform acceleration a1. The driver then... Problem 41P: In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a... Problem 42P: A certain cable car in San Francisco can stop in 10 % when traveling at maximum speed. On one... Problem 43P: A hockey player is standing on his skates on a frozen pond when an opposing player, moving with a... Problem 44P: A train 4.00 102 m long is moving on a straight track with a speed of 82.4 km/h. The engineer... Problem 45P: A ball is thrown vertically upward with a speed of 25.0 m/s. (a) How high does it rise? (b) How long... Problem 46P: A ball is thrown directly downward with an initial speed of 8.00 m/s, from a height of 30.0 m. After... Problem 47P: A certain freely falling object, released from rest, requires 1.50 s to travel the last 30.0 m... Problem 48P: 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 49P: Traumatic brain injury such as concussion results when the head undergoes a very large acceleration.... Problem 50P: A small mailbag is released from a helicopter that is descending steadily at 1.50 m/s. After 2.00 s,... Problem 51P: A tennis player tosses a tennis ball straight up and then catches it after 2.00 s at the same height... Problem 52P: A package is dropped from a helicopter that is descending steadily at a speed vn. After t seconds... Problem 53P: A model rocket is launched straight upward with an initial speed of 50.0 m/s. It accelerates with a... Problem 54P: A baseball is hit so that it travels straight upward after being struck by the bat. A fan observes... Problem 55AP: A truck tractor pulls two trailers, one behind the other, at a constant speed of 1.00 102 km/h. It... Problem 56AP: Colonel John P. Stapp, USAF, participated in studying whether a jet pilot could survive emergency... Problem 57AP: A bullet is fired through a board 10.0 cm thick in such a way that the bullets line of motion is... Problem 58AP: A speedboat moving at 30.0 m/s approaches a no-wake buoy marker 1.00 102 m ahead. The pilot slows... Problem 59AP: A student throws a set of keys vertically upward to his fraternity brother, who is in a window 4.00... Problem 60AP: A student throws a set of keys vertically upward to his fraternity brother, who is in a window a... Problem 61AP: An insect called the froghopper (Philaenus spumarius) has been called the best juniper in the animal... Problem 62AP Problem 63AP: A ball is thrown upward from the ground with an initial speed of 25 m/s; at the same instant,... Problem 64AP: To pass a physical education class at a university, a student must run 1.0 mi in 12 min. After... Problem 65AP: In Chapter 5 we will define the center of mass of an object The center of mass moves with constant... Problem 66AP: Two students air on a balcony a distance h above the street. One student throws a ball vertically... Problem 67AP: You drop a ball from a window on an upper floor of a building and ii is caught by a friend on the... Problem 68AP: The driver of a truck slams on the brakes when he sees a tree blocking the road. The truck slows... Problem 69AP: Emily challenges her husband, David, to catch a 1 bill as follows. She holds the bill vertically as... Problem 70AP: A mountain climber stands at the top of a 50.0-m cliff that overhangs a calm pool of water. She... Problem 71AP: An ice sled powered by a rocket engine sum from rest on a large frozen lake and accelerates at + 40... Problem 72AP: In Bosnia, the ultimate test of a young nuns courage used to be to jump off a 400-year-old bridge... Problem 73AP Problem 74AP: A glider on an air track carries a flag of length through a stationary photogate, which measures... Problem 75AP: A stuntman sitting on a tree limb wishes to drop vertically onto a horse galloping under the tree.... format_list_bulleted