Which of the following graphs best shows the velocity v of the clay ball from when it is dropped until it hits the ground?

The correct option is;

C

Explanation:

The given information is that a clay ball is dropped from a certain height.

Therefore, the clay ball has an initial potential energy and zero kinetic energy

Which gives that the initial velocity of the clay ball = 0

As the potential energy is converted into kinetic energy, the velocity of the clay ball increases

However, if the direction of measurement of the velocity is opposite to the direction in which the clay ball is falling, the velocity of the ball progressively increases negatively as shown in option C