Question

What was the velocity of the player after the collision when they moved together at -4.50 m/s?

A) -15.3 m/s
B) -18.2 m/s
C) 18.2 m/s
D) 14.6 m/s

Answer 1

The velocity of the player after the collision when they moved together at -4.50 m/s is -7 m/s.

Step-by-step explanation:

Given that after the collision the two masses moved together at -4.50 m/s, we can determine the final velocity by calculating the average of their velocities before the collision. Mass A was initially at rest and mass B moved at 14 m/s in the +x-direction.

Therefore, the average velocity is (0 + 14) / 2 = 7 m/s. Since the masses move together at -4.50 m/s, we can conclude that the final velocity of the player after the collision is -7 m/s.

So, the correct answer is A) -15.3 m/s.