A uniform chain of length 2L is hanging in equilibrium position, if end B is given aslightly downward displacement the imbalance causes an acceleration. Here pulley issmall and smooth& string is inextensibleQ.The acceleration of end B when it has been displaced by distance x, is(A)( x/L)g(B)(2x/L)g(C)(x/2)g(D)g

Three identical balls are placed on a frictionless horizontal surface touching each other. They stick to each other because of adhesive. Another ball of same radius and mass m is placed over the void created by the three balls. Find the forces applied by the balls kept on the floor to each other if the system remains in equilibrium.

A car loaded with water having total mass 1000 kg moves on a straight horizontal Road starting from rest under the action of a force of 100 Newton. The water spills throw a small hole in the bottom at a rate of 0.1 KG per second the velocity of cart after 300 seconds is nearly.

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