Question

A boy drops a ball of mass 500 g from a height 10 m. Ignoring the effects of air resistance
Calculate the kinetic energy it possess at point 3 (i.e., just before it reaches the earth
(g = 10 m s-2).​

Answer 1

Answer:

I think this is the answer..and I hope you can understand my calculation

I used the work-energy equation

here initial kinetic became zero because the initial velocity also equals to zero. (drop means there is no velocity)