Question

What is acceleration due to gravity ?

Answer 1

acceleration due to gravity means, the acceleration got by the gravitational force of Earth, which attracts the projectile by m*g where g is the gravitational acceleration. When an object is thrown upwards, the Earth's gravitational field it by 9.8 m/s^2 which is the value of gravitational acceleration.

Simply, the gravitational acceleration is the acceleration of the object caused by the gravitational field.[or gravity]

Answer 2

Gravitational acceleration is the acceleration on an object caused by the force of gravitation.