JAMB - Physics (2019 - No. 77)
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\(^{-2}\)
(g = 10ms\(^{-2}\)
1800J
1600J
600J
440J
คำอธิบาย
Potential energy at the highest point = mgh
PE = 4 × 10 × 40 = 1600J
PE = 4 × 10 × 40 = 1600J