1.A particle is dropped from a height of 3 m on a horizontal floor, which has a coefficient of restitution with the ball of 1/2. The height to which the ball will rebound after striking the floor is

2.A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is

3.Intrinisic equation of catenary is given by

4.When a body slides down an inclined surface, the acceleration of the body is given by

5.A bullet weighing 10 gm moves with a velocity of lkm/sec. Its kinetic energy is i) 5000 N.m ii) 5000 kg.m iii) 5000 J The correct answer is