Question

PHYSICAL SCIENCE HELP

Answer 1

Answer:

the magnitude of gravitational force would be 20 N

Explanation:

therefore on a body of mass m by earth is $\frac{GMm}{r^{2}}$

where M  is the mass of earth m is the mass of body, G is the gravitational constant and r is the distance of seperation from centre of earth.

therefore F =$m\times \frac{GM}{r^{2}}=mg=10m$

therefore F = 20 N.