Question

A man weighs 600 N at the equator, but when he moves to the pole he observes a slight increase in his weight. This is because:

• A. Radius of the Earth is less at poles since it is not a perfect sphere
• B. Radius of the Earth is more at poles since it is not a perfect sphere
• C. There is no increase or decrease in weight on the Earth
• D. Can't be said

Answer 1

The correct option is A

Radius of the Earth is less at poles since it is not a perfect sphere

The Earth is an imperfect sphere, its radius is smaller at poles than at equators. The value of acceleration due to gravity $g$ is greater at poles.

Hence, the weight of the body increases as the body moves from the equator to poles.