HYS-91; Multiple Choice: A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms PHYS-91; Multiple Choice: A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 meters per second. The change in the momentum of the ball is: w) 0.1 kilogram-meters per second x) 0.4 kilogram-meters per second y) 0.5 kilogram-meters per second z) 0.9 kilogram-meters per second

HYS-91; Multiple Choice: A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms PHYS-91; Multiple Choice: A girl throws a 0.1 kilogram ball at a wall. The ball hits the wall perpendicularly with a velocity of 5 meters per second and then bounces straight back with a velocity of 4 meters per second. The change in the momentum of the ball is: w) 0.1 kilogram-meters per second x) 0.4 kilogram-meters per second y) 0.5 kilogram-meters per second z) 0.9 kilogram-meters per second

Name: HYS-91; Multiple Choice: A car is moving along a straight horizontal
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Description: HYS-91; Multiple Choice: A car is moving along a straight horizontal road at a speed of 20meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates thecar to a stop in 10 seconds. The mass of the car is:w) 1250 kilog

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 26P: One hazard of space travel is debris left by previous missions. There are several thousand objects...

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One hazard of space travel is debris left by previous missions. There are several thousand objects orbiting Earth that are large enough to be detected by radar, but there are far greater numbers of very small objects, such as flakes of paint. Calculate the force exerted by a 0.100-mg chip of paint that strikes a spacecraft window at a relative speed of 4.00103m/s , given the collision lasts 6.00108s .
A spaceship's orbital maneuver requires a speed increase of 1.40 ✕ 103 m/s. If its engine has an exhaust speed of 2.20 ✕ 103 m/s, determine the required ratio Mi Mf of its initial mass to its final mass. (The differenceMi − Mfequals the mass of the ejected fuel.)
One hazard of space travel is debris left by previous missions. There are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. Calculate the force exerted by a 0.160 mg chip of paint that strikes a space shuttle window at a relative speed of 4.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. Such a collision chipped the window of the ill-fated Challenger in June 1983, causing $50,000 of damage.N
One hazard of space travel is debris left by previous missions. There are several thousand masses large enough to detect by radar orbiting the earth, but there are far greater numbers of very small masses such as flakes of paint. Calculate the force exerted by a 0.200 mg chip of paint that strikes a space shuttle window at a relative speed of 5.00 ✕ 103 m/s and sticks, given the collision lasts 6.00 ✕ 10-8 s. Such a collision chipped the window of the ill-fated Challenger in June 1983, causing $50,000 of damage.
A spaceship’s orbital maneuver requires a speed increase of1.20 x 103 m/s. If its engine has an exhaust speed of 2.50 x103 m/s, determine the required ratio Mi/Mf of its initial massto its final mass. (The difference Mi - Mf equals the mass ofthe ejected fuel.)
A football player leaps at a speed of 3.5 m/s toward a second football player, who is moving at 1.5 m/s toward the first player. The two players collide and then move together at 1.75 m/s. If the player moving originally at 1.5 m/s has a mass of 175 kg, what is the other player's mass?
39 - I. Force/AccelerationII. Momentum/SpeedIII. Power/ForceWhich of the above ratios gives the mass? a) I and II B) only I NS) I, II and III D) only II TO) I and III
Suppose a large ship has a momentum of 1.6 × 109 kg⋅m/s. What is the mass of the ship, in kg, if the ship is moving at a speed of 48 km/h? How much larger is its momentum than the momentum of a 1,100 kg artillery shell fired at 370 m/s?
A man weighing 80 kg jumps with a horizontal velocity of 5m/s onto a boat that is at rest on the water. If the boat weighs 120 kg, what is its velocity when the man comes to rest relative to it? What is the loss in kinetic energy?
As the amount the object’s of mass increases, what happens to the amount of force needed to begin moving the object? Explain.
How much momentum will a dumbbell of mass 10 kg transfer to the floor if it falls from a height of 80 cm? Take its downward acceleration to be 10 m s-2.
The club was in contact with a ball, initially at rest, for about 0.0014 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2 ✕ 102 ft/s, find the average force (in kN) exerted on the ball by the club. give answer in kN