What are the concepts prepared by Galileo?

Give the application of torque.

Give examples for Newton's third law.

Derive the Relation between g and G?

Discuss the apparent weight of a man in lift?

Calculate the velocity of a moving body of mass 5 kg whose linear momentum is 2.5 kg m s^-1.

A door is pushed, at a point whose distance from the hinges is 90 cm, with a force of 40 N. Calculate the moment of the force about the hinges.

At what height from the centre of the Earth the acceleration due to gravity will be 1/4^th of its value as at the Earth.

A cricket ball of mass 25 g moving with a speed of 12 ms^-1 is hit by a bat so that the ball is turned back with a velocity of 20 ms^-1. Calculate the impulse received by the ball?

Force of 50 N acts perpendicular on a body, which is fixed at a point O. The distance of point of action of force from O is 5 cm. Find the moment of force.