if a compressive force of 3*10^4 N is exerted on the end of 20cm long bone of cross sectional area 3.6cm², (a) will the bone break (b) if, not how much will it shorten? Given, compressive strength of bone =7.7*10^8 and Young`s modulus of bone =1.5*10^10N/m

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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