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Two carts,initially at rest,are free to ...

Two carts,initially at rest,are free to move on a horizontal plane. Cart A has mass 4.52 kg and cart B has a mass 2.37kg. They aretied together, compressing a light spring in between them. When the string holding them together is burned, the cart A moves off with a speed of 2.11 m/s.(a) With what speed does cart B leave ? (b) How much energy was stored in the spring before the string was burned ?

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Verified by Experts

The correct Answer is:
`[4.02 m//s, 29 .3J]`
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