Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J.

What kind of energy does the ball have just before touching the ground? What is the value of this energy?

Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J. What is the KE at the point B.

Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J. What will be the total energy at point C?

Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J. Write the value of PE and KE at point A.

Look at the figure of a ball resting on top of a wall. At A, it's energy is 50 J. It falls down, at B its PE is 30 J. Which law helped us to calculate the energies above?

Look at Figure A. What kind of energy does each image denote?

A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. (a)Taking g=10 m s^(-2) ,Calculate : (i)the potential energy possessed by the ball when it is initially at rest. (ii)the kinetic energy of the ball just before it his the ground? (b)What happens to the mechanical energy after the ball his the ground and comes to rest ?

A ball of mass 20 g falls from a height of 10 m and after striking the ground.It rebounds from the ground to a height of 8 m . (a) Calculate: (i)The kinetic energy of the ball just before striking the ground ,and (ii)The loss in kinetic energy of the ball on striking the ground,and (ii)the loss in kinetic energy of the ball on striking the ground. (b)What happens to the loss in kinetic energy in part(ii) ? Take g=10 m s^(-2) Neglect air friction .

A ball of mass 10 g falls from a height of y 5 m. It rebounds from the ground to a height of 4m. Find : (a) the initial potential energy of the ball, (b) the kinetic energy of the ball just before the ground. striking the ground, (c) the kinetic energy of the ball after striking the ground ,and (d) the loss in kinetic energy on striking the ground . Take g=9.8 m s^(-2) .

A body of mass 10 kg is kept at a height of 5 m. It is allowed to fall and reach the ground. What is the kinetic energy possessed by the body just before hitting the ground? (Take g = 10m//s^(2) ).

A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground ? (g=9.8ms^(-2))