Two carts A and B, are placed on an air track. They are made of same material and look identical. B is given a constant speed and collides elastically with A at rest. After the collision, both carts move in same direction. One concludes that:

Two carts A and B, are placed on an air track. They are made of same m

1.	Two carts A and B, are placed on an air track. They are made of same material and look identical. B is given a constant speed and collides elastically with A at rest. After the collision, both carts move in same direction. One concludes that:
Answer» A is hollow B is hollow A and B are IDENTICAL any of FIRST THREE ANSWERS is possible. Answer :A

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Two carts A and B, are placed on an air track. They are made of same material and look identical. B is given a constant speed and collides elastically with A at rest. After the collision, both carts move in same direction. One concludes that:

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