Velocity and acceleration are both vectors, they have a direction . what is the direction of the velocity and acceleration vectors of a tennis ball that is rising upward towards its highest point above the ground ? pick two answers

Velocity is upward, acceleration is downward

Explanation:

The tennis ball is moving upwards. The direction of the velocity corresponds to the direction of motion of the ball: therefore, it is upward in the first half of the motion of the ball, when the ball is moving upward (while it will be downward after the ball has reached its maximum height, since the ball will start moving downwards).

Instead, the direction of the acceleration is constant. In fact, there is only one force acting on the ball: the force of gravity. Therefore, the acceleration on the ball is equal to

where (mg) is the force of gravity, m is the mass of the ball, and g is the acceleration of gravity (), which acts downward. Therefore, the acceeleration acting on the ball is constant during the whole motion, and therefore it is always acting downward.