A Hunter tries to hunt a monkey with a small Arrow with initial velocity u not the monkey is hanging on branch of tree of height H above the ground Hunter is l distance from the bottom of the tree monkey sees the arrow and immediately fall freely with zero initial velocity the the min speed of Arrow Hunter to succeed

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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