Question

Write the expression of acceleration due to gravity of a body of mass m on a planet of mass M. In which

direction does It act?​

Answer 1

Explanation:

The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.

This verbal statement can be expressed in equation form as follows:

a=

m

F

put a=g; gravitational acceleration,

So,

F=mg

Answer 2

Explanation:

The force due to gravity ‘F’ acting on a body of mass placed on the earth’s surface having mass ‘m’and radius ‘r’ is equivalent to the force of attraction between the body and the earth.