A ladder 6m long and with 300N weight is resting against a wall at an angle of 60 to the ground. A man weighing 750N climbs the ladder. At what position along the ladder frombottom does he induce slipping? The coefficient of friction for both wall and the ground with ladder is 0.2

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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