Question

A ball of mass 0.5 kg is dropped from a height of 5m.(a) find the kinetic energy of the ball just before it reaches the ground.(b) what is its speed at this instance?

Answer 1

Answer:

Step-by-step explanation:

Kinetic energy=stored potential energy

                       =mgh

                       = 0.5*10*5

                        =25 Joule

25=1/2*m*v²

50/0.5=v²

100=v²

v=10m