A bullet is to be fired with a speed of 200 ms^–1 to hit a target 200 m away on a level ground. If g = 10 ms^–2, the gun should be aimed

1. directly at the largest 2. 5 cm below the target 3. 5 cm above the target 4. 2 cm above the target 5. 2 cm below the target

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.

11

21

31

41