What is acceleration ?

Earth can be thought of as a sphere of radius 6400 km.Any object (or a person) is pewrforming circular motion around the axis of the earth due to the earth rotation (period 1 day). What is acceleration of object on the surface of the earth (at equator) towards its centre? What is it at latitude theta ? How does these acceleration compare with g = 9.8 m//s^(2) ?

A ball is thrown up with a speed of 9.8 ms^-1 What the acceleration due to gravity at the top most point.

A ball is thrown up with a speed of 9.8 ms^-1 What The acceleration while the ball is moving upwards.

A ball is thrown up with a speed of 9.8 ms^-1 What the acceleration while the ball is moving downwards.

What is the acceleration of free fall?

What is the acceleration of a particle moving with a uniform velocity?

What is the acceleration of a pebble thrown vertially upwards when the pebble is at the maximum height.

What is the acceleration of a pebble thrown vertially upwards when the pebble is falling down?