Momentum and Collision...7. Nishi is driving his 20O0kg car at 50m/h. He diverts his attention from theroad to message a friend and drives intothe back end of the car in front of him,moving them both at speed of 40km/h. Ifthe second car has a mass of 10O0kg,how fast was it travelling prior to thecollision? Conservation of Momentum...4. When the momentum of an objectdoubles and its mass is constant, itskinetic energy is:a. is halvedb. doublesc. quadruplesd. remains the samee. None of the above

4)Given, Momentum of an object doubled and mass remais constant Let mass of object is m and…

Answered: 4. When the momentum of an object…

4. When the momentum of an object doubles and its mass is constant, its kinetic energy is: a. is halved b. doubles c. quadruples d. remains the same e. None of the above

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 22P: If a rainstorm drops 1 cm of rain over an area of 10km2 in the period of 1 hour, what is the...

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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

Momentum and Collision
...
7. Nishi is driving his 20O0kg car at 50
m/h. He diverts his attention from the
road to message a friend and drives into
the back end of the car in front of him,
moving them both at speed of 40km/h. If
the second car has a mass of 10O0kg,
how fast was it travelling prior to the
collision?

Conservation of Momentum
...
4. When the momentum of an object
doubles and its mass is constant, its
kinetic energy is:
a. is halved
b. doubles
c. quadruples
d. remains the same
e. None of the above

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