Question

With her bare hands and her arms rigidly extended, a girl catches a 0.16kg baseball coming directly at her at a speed of 25m/s. What is the magnitude of the force exerted by the girl on the baseball?

1) 0.4 N
2) 4 N
3) 40 N
4) 400 N

Answer 1

The magnitude of the force exerted by the girl on the baseball is 4 N.

Step-by-step explanation:

To find the magnitude of the force exerted by the girl on the baseball, we can use the equation:

Force = mass x acceleration

Since the girl catches the baseball with her bare hands and her arms rigidly extended, we can assume that the acceleration of the baseball is equal to its initial velocity of 25 m/s. Therefore:

Force = 0.16 kg x 25 m/s = 4 N

The magnitude of the force exerted by the girl on the baseball is 4 N.