ACCELERATION DUE TO GRAVITY

The most common force observed is the force of gravity.
The reason of objects falling towards ground is that the Earth has an inherent property of exerting an attraction of force on the objects. This force is called force of gravity and the acceleration generated on the objects due to this force is called Acceleration due gravity .

As per the definition of force, the equation of force due to gravity is given by,
W = mg
where m = mass of the Object
g = acceleration due to gravity.

In this case, the force is better known as the weight of the object. Also the acceleration in this case is the acceleration due to gravity. It is a constant and denoted by the letter g. The approximate value of acceleration due to gravity in feet is 32 ft/s2 or in meters is 9.8 m/s2.These are the values of acceleration of gravity on the Earth.