The weight of a body on earth is 98 N where the acceleration due to gravity is 9.8 m s^-2. What will be it's (a) mass and (b) weight on moon where the acceleration due to gravity is 1.6 m s^-2 ?

A man weighs 600 N on earth. What would be his approximate weight on moon ? Give reason for your answer ?

A ball is released from a height and it reaches the ground in 3 s. If g = 9.8 m s^-2, find —

(a) the height from which the ball was released,

(b) the velocity with which the ball will strike the ground.

What force, in newton, your muscles need to apply to hold a mass of 5 kg in your hand ? State the assumption.