A 100-gram ball is kept on the top of a building of 70 m height. Find the potential energy of the ball (assume g = 10 m/s²).

Correct option is C

From the formula.
Potential energy of the body = mgh
where m = mass
g = gravitational acceleration
h = height
Hence, the potential energy of given ball
= m x g x h
= 0.1×10×70 ------------(100 gm=0.lkg)
= 70 Joule