If radius of the earth contracts 2% and its mass remains the... | PHYSICS - THE GRAVITATIONAL CONSTANT | SolveeIt | Solveeit

Today, August 18

Question

If radius of the earth contracts 2% and its mass remains the same, then weight of the body at the earth surface

A

Will decrease

B

Will increase

C

Will remain the same

D

None of these

Answer

Will increase

Explanation

Solution

$g \propto \frac { 1 } { R ^ { 2 } }$ . If radius of earth decreases by 2% then g will increase by 4% i.e. weight of the body at earth surface will increase by 4%