A body of mass M hits normally on a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is

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

A man slides down a light rope whose breaking strength is η times his weight .What should be his maximum acceleration so that the rope does not break ?

A passenger in the bus finds that his suit case suddenly starts sliding backwards. This means that the bus is

A man of 50 kg mass is standing in a gravity free space at a height of 10 m above the floor. He throws a stone of 0.5 kg mass downwards with a speed 2m/s. When the stone reaches the floor, the distance of the man above the floor will be

For a car not to turn safely on a curved road

As shown in the figure at point O, a mass m is performing vertical circular motion. The average velocity of the particle is increased. Then at which point will the string break?

Three different objects of masses m₁,m₂ and m₃ are allowed to fall from rest and from the same point O along three different frictionless paths. The speeds of the three objects on reaching the ground will be in the ratio of

If a ladder weighing 250 N is placed against a smooth vertical wall having coefficient of friction between it and floor 0.3, then what is the maximum force of friction available at the point of contact between the ladder and the floor?

A fireman wants to slide down a rope. The breaking load for the rope is 3/4^th of the weight of the man. With what minimum acceleration should the fireman slide down? Acceleration due to gravity is g.