Question

A ball falls to the ground as show below
A:P.E:80j ,K.E:0
B:K.E:48j
C:P.E:O
a) what is the kinetic energy of ball when it hits the ground?

b) What is the potential energy of ball at B?

c) which law you have made use of in answering this question?​

Answer 1

Answer:

a) 0 B* kinetic Energy

b) 120J potential Energy

Explanation:

a) When the object hits the ground, the kinetic energy has to go somewhere, because energy isn't created or destroyed, only transferred. If the collision is elastic, meaning the object can bounce, much of the energy goes into making it bounce up again.

b) The gravitational potential energy of an object near Earth's surface is due to its position in the mass-Earth system.