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KEAM 2022 Physics and Chemistry Solved Paper

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Question : 14

Total: 120

A man weighing 70‌kg is riding on a cart of mass 30‌kg which moves along a level floor at a speed of 3ms−1. If he runs on the cart so that his velocity relative to the cart is 4ms−1 in the direction opposite to the motion of the cart, the speed of centre of mass of the system is

0.3ms−1
‌‌0.5ms−1
0.2ms−1
0.1ms−1
zero

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