y Col- Of v/4 after the collision. (a) What tme Fatio of the final kinetic energy of the system to the initial kinetic energy? (b) What is the ratio of the mass of the more mas- sive object to the mass of the less massive object? SECTION 9-6 ELASTIC COLLISIONS 35. In the apple-orange collision in Example 9-16, suppose the final velocity of the orange is 1.03 m/s in the negative y direction. What are the final speed and direction of the apple in this case? 36. A 732-kg car stopped at an intersection is rear-ended by a 1720-kg truck moving with a speed of 15.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elas- tic, find the final speed of both vehicles after the collision. 37. The collision between be approximately elastic. Calculate the kinetic energy acquired by a hammer and a nail can be considered to a 7.2-g nail when it is struck by a 450-g hammer moving with an initial speed of 8.8 m/s. 38. *. Predict/Calculate A charging bull elephant with a mass of 5240 kg comes directly toward you with a speed of 4.55 m/s. You toss a 0.150- kg rubber ball at the elephant with a speed of 7.81 m/s. (a) When

y Col- Of v/4 after the collision. (a) What tme Fatio of the final kinetic energy of the system to the initial kinetic energy? (b) What is the ratio of the mass of the more mas- sive object to the mass of the less massive object? SECTION 9-6 ELASTIC COLLISIONS 35. In the apple-orange collision in Example 9-16, suppose the final velocity of the orange is 1.03 m/s in the negative y direction. What are the final speed and direction of the apple in this case? 36. A 732-kg car stopped at an intersection is rear-ended by a 1720-kg truck moving with a speed of 15.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elas- tic, find the final speed of both vehicles after the collision. 37. The collision between be approximately elastic. Calculate the kinetic energy acquired by a hammer and a nail can be considered to a 7.2-g nail when it is struck by a 450-g hammer moving with an initial speed of 8.8 m/s. 38. *. Predict/Calculate A charging bull elephant with a mass of 5240 kg comes directly toward you with a speed of 4.55 m/s. You toss a 0.150- kg rubber ball at the elephant with a speed of 7.81 m/s. (a) When

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter6: Momentum, Impulse, And Collisions

Section: Chapter Questions

Problem 71AP: A block with mass m1 = 0.500 kg is released from rest on a frictionless track at a distance h1, =...

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Concept explainers

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.

Question

What is the numeric answer to problem # 36?

y Col-
Of v/4 after the collision. (a) What
tme Fatio of the final kinetic energy of the system to the initial
kinetic energy? (b) What is the ratio of the mass of the more mas-
sive object to the mass of the less massive object?
SECTION 9-6 ELASTIC COLLISIONS
35. In the apple-orange collision in Example 9-16, suppose the final
velocity of the orange is 1.03 m/s in the negative y direction. What
are the final speed and direction of the apple in this case?
36. A 732-kg car stopped at an intersection is rear-ended by a 1720-kg
truck moving with a speed of 15.5 m/s. If the car was in neutral
and its brakes were off, so that the collision is approximately elas-
tic, find the final speed of both vehicles after the collision.
37. The collision between
be approximately elastic. Calculate the kinetic energy acquired by
a hammer and a nail can be considered to
a 7.2-g nail when it is struck by a 450-g hammer moving with an
initial speed of 8.8 m/s.
38. *. Predict/Calculate A charging bull elephant with a mass of 5240 kg
comes directly toward you with a speed of 4.55 m/s. You toss a 0.150-
kg rubber ball at the elephant with a speed of 7.81 m/s. (a) When

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A block with mass m1 = 0.500 kg is released from rest on a frictionless track at a distance h1, = 2.50 m above the top of a table. It then collides elastically with an object having mass m2 = 1.00 kg that is initially at rest on the table, as shown in Figure P6.71. (a) Determine the velocities of the two objects just after the collision. (b) How high up the track does the 0.500-kg object travel back after the collision? (c) How far away from the bottom of the table does the1.00-kg object land, given that the height of the table h2 = 2.00 m? (d) How far away from the bottom of the table does the 0.500-kg object eventually band? Figure P6.71