How to find the acceleration due to gravity on a certain planet if mass of an object and its weight on that planet are known.

Suppose:

• mass = m = 15 kg
• weight = F_g = 325 N

Calculate:

	Starting formula: The weight of an object equals its mass times the gravitational acceleration.
	Divide each side by m.
	The m's cancel.
	After the m's cancel, we have solved for ag, the gravitational acceleration.
	Switch right and left sides.
	Plug in values and units.
	Note that the N (Newton) unit can be expressed as kg-m/s2 (kilogram-meter per second squared).
	The kg units cancel.
	After the kg units cancel we are left with the acceleration unit.
	The acceleration is calculated to significant digits.