Question

a tennis ball is hit straight upwards and undergoes a free fall motion as it rises towards its highest point. what changes, if any, would be observed of the velocity and the acceleration of the tennis ball as it rises towards its highest point? pick two answers. tap to select or deselect answers. the velocity ... the acceleration ... increases increases decreases decreases remains constant remains constant

Explanation:

Step1: Analyze velocity in free - fall

When an object is in free - fall moving upwards, the gravitational force acts downwards. This force opposes the upward motion, causing the velocity of the object to decrease until it reaches zero at the highest point.

Step2: Analyze acceleration in free - fall

The acceleration due to gravity near the Earth's surface is approximately \(g = 9.8\ m/s^{2}\) (downwards) and remains constant throughout the free - fall motion (neglecting air resistance). It does not change as the object moves upwards or downwards.

Answer:

The velocity... decreases
The acceleration... remains constant