A projectile of mass 4kg is fired vertically and reaches a maximum height of 40m. Calculate the potential energy at the highest point
(g = 10ms\(^{-2}\)
A
1800J
B
1600J
C
600J
D
440J
Verified Correct Answer: B.
Physical Principles & Numerical Solution
Potential energy at the highest point = mgh
PE = 4 \times 10 \times 40 = 1600J
Source: Myschool Past Questions Archive (Record #55692)