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Physics, 04.12.2019 06:31 marianabeel230

You are given two carts a and b. they look identical and you are told they are made of the same material. you place a at rest at an air track and give b a constant velocity directed to the right so that it collides elastically with a. after the collision cart b moves to the left. what do you conclude?

(a) cart a is hollow.
(b) the two carts are identical.
(c) cart b is hollow.

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