Acceleration Due to Gravity

From our previous blog, we know that earth attract objects with a constant force. Whenever a constant force is applied, velocity starts changing. In our third blog of this series, we already have discussed that change in velocity per unit time is known as acceleration. In this case the acceleration is called acceleration due to gravity as it is occurring under the influence of gravitation. Acceleration due to gravity is denoted by a small ‘g’ and it’s calculated value is 9.8 m/s².

In our everyday life we have observed that whenever an object is thrown upward, it comes back after attaining a certain height. The harder we throw it, the higher it goes and comes back.

Whenever an object is thrown upward, gravitation forces it to come back to the ground. While going upward negative acceleration due to gravity works on objects as retardation. Because the motion is in the opposite direction of the force and vice versa.

Whenever something falls under the influence of gravity, known as free fall. But if another force other than gravity is also in action simultaneously it would not be a free fall as well.

On earth, we have an atmosphere filled with all the different kinds of gases known as air. Falling objects under the gravitation also experience air resistance or friction. Due to this air friction, free fall attains an equilibrium and falls with a constant. We will discuss this concept in our advanced blog in detail. Until then keep observing the gravitation and keep exploring more and more.

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