A body of mass 0.1 kg attains a velocity of 10 m/s in 0.1s.The force acting on them is:

A body is at rest on the surface of the earth. Which of the following statement is correct?

Two blocks P and Q are released at the top of a rough inclined plane so that P slides along the plane and Q falls down freely. Which will have higher velocity on reaching the ground?

Two trains A and B are running in the same direction on parallel tracks such that A is faster than B.If packets of equal weight are exchanged between the two, then

To avoid slipping while walking on ice one should take smallest steps because of the

The rear side of a truck is open and a box of 50 kg mass is placed 5 m away from the rear end.The coefficient of friction between the box and the surface below it is 0.15.On a straight road the truck starts from rest and accelerates at 2 m/s² .At what distance from the starting point does the box fall off the truck ?(g = 10 m/s² )

A block of mass 50 kg is placed on a rough inclined plane.The inclination is gradually increased to 30° when the block starts sliding down.Find the magnitude of the limiting friction.

A car turns a corner on a slippery road at a constant speed of 12 m/s. If the coefficient of friction if 0.4, the minimum radius of the arc is metre in which the car turns is

A block of metal of mass 2 kg is resting on a frictionless floor.It is struck by a jet releasing water at the rate of 1 kg/sec and at a speed of 5 m/s.What will be the initial acceleration of the block ?

A cricket player catches a ball of mass 100 g and moving with a velocity of 25 ms^-1. If the ball is caught in 0.1s, the force of the blow exerted on the hand of the player is