An object is moving with a velocity of 5ms−¹. At what height must a similar body be situated to have a potential energy equal in value with kinetic energy of the moving body?

A. 25.0m
B. 20.0m
C. 1.3m
D. 1.0m

Correct Answer:

Option C – 1.3m

Explanation

P.E = K.E

Therefore, h = v²/2g=5²/2×10

= 1.25; Approx 1.3m