Two carts,initially at rest,are free to move on a horizontal plane. Cart A has mass 4.52 kg
Channel: Doubtnut
Date: 2020-08-30

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 ?