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Anna71 [15]
3 years ago
9

Object A of mass M is released from height H, whereas object B of mass 0.5M is released from height 2H. What is the ratio of the

velocity of object A to that of object B immediately before they hit the ground?
A. 1:2
B. 1.41 :1
C. 1: 1.41
D. 1:4
E. 1:1

Physics
1 answer:
skelet666 [1.2K]3 years ago
5 0
My solution. ......................

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A small car has a head-on collision with a large truck. Which of the following statements concerning the magnitude of the averag
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Answer:

The small car and the truck experience the same average force.

Explanation:

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force equals mass times acceleration.

And the third one says that;

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From the third law, if the car experiences a force F due to the impact with the truck, then the truck experiences the same force F due to the impact.

But this seems odd, because we would expect to see the car being more affected by the impact, right?

Well, this is explained by the second law.

Suppose that the mass of the car is m, and the mass of the truck is M.

such that M > m

Then for the small car we have:

F = m*a

And for the truck:

F = M*a'

Because the force is the same for both of them, we can write:

m*a = M*a'

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because M > m, then M/m > 1.

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