Question

A book with a mass of 1kg is dropped from a height of 3m . What is the potential energy of th book when it reaches the floor?​

Answer 1

30 J

Step-by-step explanation:

height = 3 m

mass = 1kg

acceleration due to gravity = 10m/s²

Potential Energy = mass× gravity × height

= 1kg ×10m/s²× 3m

= 30 J