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?
1 answer:
Answer:
30 J
Explanation:
height = 3 m
mass = 1kg
acceleration due to gravity = 10m/s²
Potential Energy = mass× gravity × height
= 1kg ×10m/s²× 3m
= 30 J
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