If a body weight 10N is lifted from the floor to a table 2m above the floor ,calculate the potential energy gained.What happens to the energy if the body falls of the table and hits the floor?
Force is in Newton so
F=ma (where a is acceleration due to gravity)
Potential energy =mgh
P. E= force *h
P. E= 10*2
P. E= 20joules.
(b) there will be a conversation of potential energy to kinetic energy due to its change in position that to motion