Question

What do you mean by the acceleration due to gravity? Give its value in SI unit.

Answer 1

1. When an object is dropped from some height its velocity increases at a constant rate.
2. In other words, when an object is dropped from some height a uniform acceleration is produced in it by the gravitational pull of the earth and this acceleration does not depend on the mass of the falling object.
3. The uniform acceleration produced in a freely falling body due to the gravitational force of the earth is known as acceleration due to gravity and it is denoted by the letter ‘g’.
4. Its SI unit is $m/s^2$. The standard value of g on the surface of the earth at sea level is $9.8m/s^2$.