an elevator car whose floor to ceiling distance is equal to 2.7 m starts ascending with a constant acceleration of 1.2 m/s square two sec after a bolt begins to fall from the ceiling of the elevator find

the bolt’s free fall time and the displacement and distance covered by the bolt during the fall from the ceiling with respect to ground

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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