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sukhopar [10]
3 years ago
5

A steel ball bearing is released from a height H and

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
4 0

Answer:

ELASTIC collision

kinetic energy is conservate

Explanation:

As the ball bounces to the same height, it can be stated that the impact with the floor is ELASTIC.

As the floor does not move the conservation of the moment

            po = pf

            -mv1 = m v2

- v1 = v2

So the speed with which it descends is equal to the speed with which it rises

Therefore the kinetic energy of the ball before and after the collision is the same

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muminat

<u>Yes. The speed of a rocket can exceed the exhaust speed of the fuel.</u>

How this is explained?

  • The thrust of the rocket does not depend on the relative speed of the gases or the relative speed of the rocket.
  • It depends on conservation of momentum.

What is conservation of momentum?

  • Conservation of momentum, general law of physics according to which the quantity called momentum that characterizes motion never changes in an isolated collection of objects; that is, the total momentum of a system remains constant.
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To know more about conservation of momentum, refer:

brainly.com/question/7538238

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1 year ago
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-- volume = (length)(width)(height)

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Volume = (2.5cm)(2.5cm)(2.5cm)

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