Question

Consider a box of mass 40kg placed at a distance of 2m from the open rear end of a long trolly. trolley started from rest and it was accelerated uniformly at a rate of 20ms^2. the coefficient of friction between the box and the surface of the trolley is 0.2. It was observed that the box falls down, when trolley moved through some distance. take g=10ms^2. 1. how much force of friction acts on the box? 2. the net force acting on the box towards the rear end of the trolley is? 3. the time after which the box to fall off from the rear end of the trolley is? 4. The distance travelled by the trolley from its starting point during the time , the box fell off from the trolley is?​

Answer 1

Answer:

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