You are throwing a stone straight$-$up in the absence of air friction.

The stone is caught at the same height from which it was thrown.

Determine the validity of the following statements. $(tru\frac{e}{f}$alse$)$

Statement $1$:

The acceleration is zero at the top point of the motion.

Statement $2$:

The acceleration is maximum at the top point of the motion.

Statement $3$:

The acceleration is directly proportional to the velocity.