Question

1. If the same 1.0 kg book is lifted 0.5 m above the table, but the table top is 1.0 m

above the floor, what would be the potential energy of the book if the reference level we
the floor?

Answer 1

Potential Energy = 10J

Explanation:

mass of the book = 1.0kg

height = (0.5 + 1)m

acceleration due to gravity = 10m/s²

Potential Energy = mass × acceleration × height

Potential Energy = 1kg × 10m/s² × 1m

Potential Energy = 10J