A small mass is suspended from a long thread so as to form a simple pendulum the period T of oscillators depend on the mass M, the length L of the thread and the acceleration for free place.

T=km^x L^y g^z where x,y and z are unknown and k=2π.

i.find the value of x,y and z.

ii.hence, derive an expression T,m,l and 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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