Question

Find the work required to stop a 0.3 kg ball moving at 5 m/s.

A) -150 J
B) -75 J
C) -45 J
D) -80 J

Answer 1

The work required to stop a 0.3 kg ball moving at 5 m/s is 0 J.

Step-by-step explanation:

The work required to stop a moving object can be calculated using the formula:
Work = 0.5 * mass * (final velocity)^2

In this case, the mass of the ball is given as 0.3 kg and the initial velocity is given as 5 m/s. Since the ball needs to be brought to a complete stop, the final velocity is 0 m/s.

Substituting the values into the formula:
Work = 0.5 * 0.3 kg * (0 m/s)^2
Work = 0 J

Therefore, the correct answer is None of the above (0 J).