What will happen if the force of gravity disappears suddenly?

State whether the following statement is True or False:
The centre of mass and centre of gravity for a small body lie at the same point.

$A$ stone is dropped from the edge of a roof.
$(a)$ How long does it take to fall $4.9 \, m$?
$(b)$ How fast does it move at the end of that fall?
$(c)$ How fast does it move at the end of $7.9 \, m$?
$(d)$ What is its acceleration after $1 \, s$ and after $2 \, s$?

Define 'acceleration due to gravity of earth'. Does the acceleration produced in a freely falling body depend on the mass of the body? Justify your answer mathematically.

When dropped from the same height,a body reaches the ground quicker at the poles than at the equator. Why?

$A$ bomb is released from an aircraft. Its trajectory is: