Spring 1 has natural length 0.5 m and k₁=25 N/m and spring 2 has natural length of 1 m and k₂ = 10N/m. They are joined together and free ends are streched so that the ends are fixed to the two walls 2m apart as shown. The stretched lengths of spring 1 and 2 at equilibrium are?(springs are massless)

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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