Question

The force of gravity that acts on an object on

the surface of Mars is 20 N. What force of

gravity will act on the same object on the

surface of the Earth? (use gravitational field

strength g = 9.8 N/Kg on the surface of the

Earth).

Answer 1

$F_M=mg_M\to m=F_M/g_M=20/3.728=5.36\ (kg)$

$F_E=mg_E=5.36\cdot9.81=52.58 \ (N)$ . Answer