Problem 1CQ: The objects shown in Figure 8.31 move together. Identify internal and external forces for each of... Problem 2CQ: Gliders A and B are headed directly toward each other on an air track and collide head-on. Identify... Problem 3CQ: Example 8.3 and some of the problems in this chapter describe how, when an object explodes into two... Problem 4CQ: Is the momentum of a satellite in a circular orbit conserved? What about its kinetic energy? Explain... Problem 5CQ Problem 6CQ: A woman stands in the middle of a perfectly smooth, frictionless, frozen lake. She can set herself... Problem 7CQ: (a) If the momentum of a single object is equal to zero, must its kinetic energy also be zero? (b)... Problem 8CQ: (a) When a large car collides with a small car, which one undergoes the greater change in momentum,... Problem 9CQ: When rain falls from the sky, what becomes of the momentum of the raindrops as they hit the ground?... Problem 10CQ: In a zero-gravity environment, can a rocket-propelled spaceship ever attain a speed greater than the... Problem 11CQ: A machine gun is fired at a steel plate. Is the impulse imparted to the plate from the impact of the... Problem 12CQ: At the highest point in its parabolic trajectory, a shell explodes into two fragments. Is it... Problem 1MCP: A small car collides head-on with a large SUV. Which of the following statements concerning this... Problem 2MCP: In which of the following collisions would you expect the kinetic energy to be conserved? (There may... Problem 3MCP: A rifle of mass M is initially at rest, but is free to recoil. It fires a bullet of mass m with a... Problem 4MCP: Two carts, one twice as heavy as the other, are at rest on a horizontal frictionless track. A person... Problem 5MCP: Two masses, M and 5M, are at rest on a horizontal frictionless table with a compressed spring of... Problem 6MCP: A glider airplane is coasting horizontally when a very heavy object suddenly falls out of it. As a... Problem 7MCP: Which of the following statements is true for an inelastic collision? (There may be more than one... Problem 8MCP: Which of the following statements is true for an elastic collision? (There may be more than one... Problem 9MCP: Cart A, of mass 1 kg, is initially moving to the left and collides with cart B, which has a mass of... Problem 10MCP: Two lumps of day having equal masses and speeds, but traveling in opposite directions on a... Problem 11MCP: A heavy rifle initially at rest fires a light bullet. Which of the following statements about these... Problem 12MCP: You drop an egg from rest with no air resistance. As it falls, A. only its momentum is conserved. B.... Problem 1P: For each case in Figure 8.33, the system consists of the masses shown with the indicated velocities.... Problem 2P: For each case in Figure 8.34, the system consists of the masses shown with the indicated velocities.... Problem 3P: Three objects A, B, and C are moving as shown in Figure 8.35. Find the x and y components of the net... Problem 4P: A 2646 lb car is moving on the freeway at 68 mph. (a) Find the magnitude of its momentum and its... Problem 5P: The speed of the fastest-pitched baseball was 45 m/s, and the balls mass was 145 g. (a) What was the... Problem 6P: Cart A has a mass of 5 kg and is moving in the +x direction at 2 m/s. Cart B has a mass of 2 kg and... Problem 7P: The magnitude of the momentum of a cat is . What would be the magnitude of the momentum (in terms of... Problem 8P: Two figure skaters, one weighing 625 N and the other 725 N, push off against each other on... Problem 9P: Recoil speed of the earth. In principle, any time someone jumps up, the earth moves in the opposite... Problem 10P: On a frictionless air track, a 0.150 kg glider moving at 1.20 m/s to the right collides with and... Problem 11P: You are standing on a sheet of ice that covers the football stadium parking lot in Buffalo; there is... Problem 12P: On a frictionless, horizontal air table, puck A (with mass 0.250 kg) is moving to the right toward... Problem 13P: Block A in Figure 8.36 has mass 1.00 kg, and block B has mass 3.00 kg. The blocks are forced... Problem 14P: A 750 kg car is stalled on an icy road during a snowstorm. A 1000 kg car traveling eastbound at 10... Problem 15P: You (mass 55 kg) are riding your frictionless skateboard (mass 5.0 kg) in a straight line at a speed... Problem 16P: A 4.25 g bullet traveling horizontally with a velocity of magnitude 375 m/s is fired into a wooden... Problem 17P: A ball with a mass of 0.600 kg is initially at rest. It is struck by a second ball having a mass of... Problem 18P: Combining conservation laws. A 5.00 kg chunk of ice is sliding at 12.0 m/s on the floor of an... Problem 19P: Combining conservation laws. A 15.0 kg block is attached to a very light horizontal spring of force... Problem 20P: Three Identical boxcars are coupled together and are moving at a constant speed of 20.0 m/s on a... Problem 21P: On a highly polished, essentially frictionless lunch counter a 0.500 kg submarine sandwich moving... Problem 22P: A 2 kg block is moving at 5 m/s along a frictionless table and collides with a second 2 kg block... Problem 23P: On a very muddy football field, a 110 kg linebacker tackles an 85 kg halfback. Immediately before... Problem 24P: A 5.00 g bullet is fired horizontally into a 1.20 kg wooden block resting on a horizontal surface.... Problem 25P: A hungry 11.5 kg predator fish is coasting from west to east at 75.0 cm/s when it suddenly swallows... Problem 26P: Bird defense. To protect their young in the nest, peregrine falcons will fly into birds of prey... Problem 27P: Accident analysis. Two cars collide at an intersection Car A, with a mass 2000 kg, is going from... Problem 28P: A hockey puck B rests on frictionless, level ice and is struck by a second puck A, which was... Problem 29P: A 0.300 kg glider is moving to the right on a frictionless, horizontal air track with a speed of... Problem 30P: On a cold winter day, a penny (mass 2.50 g) and a nickel (mass 5.00 g) are lying on the smooth... Problem 31P: On an air track, a 400.0 g glider moving to the right at 2.00 m/s collides elastically with a 500.0... Problem 32P: Blocks A (mass 2.00 kg) and B (mass 10.00 kg) move on a frictionless, horizontal surface. Initially,... Problem 33P: A 2 kg block is moving at a speed of 10 m/s and makes a perfectly elastic collision with a second... Problem 34P: A catcher catches a 145 g baseball traveling horizontally at 36.0 m/s. (a) How large an impulse does... Problem 35P: A block of ice with a mass of 2.50 kg is moving on a frictionless, horizontal surface. At t = 0, the... Problem 36P: Biomechanics. The mass of a regulation tennis ball is 57.0 g (although it can vary slightly), and... Problem 37P: To warm up for a match, a tennis player hits the 57.0 g ball vertically with her racket. If the ball... Problem 38P: A 150 g baseball is hit toward the left by a bat. The magnitude of the force the bat exerts on the... Problem 39P: Your little sister (mass 25.0 kg) is sitting in her little red wagon (mass 8.50 kg) at rest. You... Problem 40P: A 270 caliber hunting rifle fires an 8.5 g bullet, which exits the gun barrel at a speed of 900 m/s.... Problem 41P: Calculate the location of the center of mass of the earthmoon system (that is, find the distance of... Problem 42P Problem 43P: Three odd-shaped blocks of chocolate have the following masses and center-of-mass coordinates: (1)... Problem 44P: A 2 kg stone is dropped from a 50-m-tall building. Simultaneously, a second 1 kg stone is thrown... Problem 45P Problem 46P: A 1200 kg station wagon is moving along a straight highway at 12.0 m/s. Another car, with mass 1800... Problem 47P: Walking in a boat. A 45.0 kg woman stands up in a 60.0 kg canoe of length 5.00 m. She walks from a... Problem 48P: A small rocket burns 0.0500 kg of fuel per second, ejecting it as a gas with a velocity of magnitude... Problem 49P: A rocket is fired in deep space, where gravity is negligible. If the rocket has an initial mass of... Problem 50P: A rocket is fired in deep space, where gravity is negligible. In the first second, it ejects 1/160... Problem 51P: A 70 kg astronaut floating in space in a 110 kg MMU (manned maneuvering unit) experiences an... Problem 52GP: In 1.00 second an automatic paintball gun can fire 15 balls, each with a mass of 0.113 g, at a... Problem 53GP: In a volcanic eruption, a 2400-kg boulder is thrown vertically upward into the air. At its highest... Problem 54GP: A 0.4 kg stone is thrown horizontally at a speed of 20 m/s from a 40-m-tall building. (a) Determine... Problem 55GP: A stone with a mass of 0.100 kg rests on a frictionless, horizontal surface. A bullet of mass 2.50 g... Problem 56GP: A steel ball with a mass of 40.0 g is dropped from a height of 2.00 m onto a horizontal steel slab.... Problem 57GP: A movie stuntman (mass 80.0 kg) stands on a window ledge 5.0 m above the floor (Figure 8.46).... Problem 58GP: Tennis, anyone? Tennis players sometimes leap into the air to return a volley. (a) If a 57 g tennis... Problem 59GP: A mass m is placed at the rim of a frictionless hemispherical bowl with a radius R and released from... Problem 60GP: Two identical 1.50 kg masses are pressed against opposite ends of a light spring of force constant... Problem 61GP: A rifle bullet with mass 8.00 g strikes and embeds itself in a block with a mass of 0.992 kg that... Problem 62GP: A 5.00 g bullet traveling horizontally at 450 m/s is shot through a 1.00 kg wood block suspended on... Problem 63GP: The objects in Figure 8.49 are constructed of uniform wire bent into the shapes shown. Find the... Problem 64GP: Changing mass. A railroad hopper car filled with sand is rolling with an initial speed of 15.0 m/s... Problem 65GP: Forensic science. Forensic scientists can measure the muzzle velocity of a gun by firing a bullet... Problem 66GP: A 2.0 kg steel sphere is hanging from a hook by a thin wire 1 m long. You wish to strike it... Problem 67GP: A blue puck with mass 0.0400 kg, sliding with a velocity of magnitude 0.200 m/s on a frictionless,... Problem 68GP: The structure of the atom. During 19101911, Sir Ernest Rutherford performed a series of experiments... Problem 69GP: Rocket failure! Just as it has reached an upward speed of 5.0 m/s during a vertical launch, a rocket... Problem 70GP: In a common physics demonstration, two identical carts having rigid metal surfaces and equal speeds... Problem 71GP: A 7.0 kg shell at rest explodes Into two fragments, one with a mass of 2.0 kg and the other with a... Problem 72GP: A 15.0 g acorn falls from rest from the top of a 35.0-m-high oak tree. When it is halfway to the... Problem 73GP: Accident analysts. A 1500 kg sedan goes through a wide intersection traveling from north to south... Problem 74GP: A block of clay is suspended as part of a ballistic pendulum (see Example 8.7). You have a gun that... Problem 75PP: Momentum and the archerfish. Archerfish are tropical fish that hunt by shooting drops of water from... Problem 76PP: Momentum and the archerfish. Archerfish are tropical fish that hunt by shooting drops of water from... Problem 77PP: Momentum and the archerfish. Archerfish are tropical fish that hunt by shooting drops of water from... Problem 78PP: BIO Momentum and the archerfish. Archerfish are tropical fish that hunt by shooting drops of water... format_list_bulleted