A body projected along an inclined plane of
angle of inclination 30 stops after covering a
distance x1 . The same body projected with
same velocity stops after covering x2 distance
if the angle of inclination of the plane is
increased to 60 . Then the ratio x1
x2
is :
A)
p
2 B) 2 C)
p
3 D) 1

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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