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Pseudo Force

a lorry start...

Question

a lorry starting from rest moving with acceleration 2m/s2 has a trolley 4.5m long. a box is placed at 4.5 m from the open end and coefficient of friction between box and lorry is 0.02. the distance covered by the lorry by the time the box falls off the trolley is (g=10 m/s 2).

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