Question

A body of mass 2 kg is thrown upward with initial velocity of 20 m/s. After 2 seconds, its kinetic energy will be : (g = 10 m/sq.s)
A) 0J B) 200J C) 400J D) 100J

Answer 1

Answer:

In 2s,v=20−10×2=0

As, K.E=  

2

1

​  

mv  

2

 

So, kinetic energy at the highest point will be zero