Asatellite encircles mars at a distance above its surface equal to 3 times the radius of mars. if g m is the acceleration due to gravity at the surface of mars, what is the acceleration due to gravity at the location of the satellite?

Acceleration due to gravity at the surface of Mars is given by the formula

here

M = mass of Mars

R = radius of Mars

Now if we take a point which is at height 3 times the radius of Mars from its surface

So the acceleration due to gravity is given as

now using this

so here the gravity is 16 times lesser than gravity at surface

f is prop to m1xm2 double m1 double force

grav forces affect all objects magnetic forces affect magnetic objects and electric currents