A stone is projected horizontally with speed V from a height h above ground a horizontal wind is blowing in a direction opposite to velocity of projection and gives a stoner constant horizontal acceleration f (in the direction opposite to initial velocity). As a result the stone falls on ground at a point vertically below the point of projection then the value of h in term of f,g,v is (g is acceleration due to gravity)

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