A pool ball is rolling at a velocity of 12 cm/s to the right when it is hit by another ball. It continues moving right at a velo

Question

3 years ago

5

A pool ball is rolling at a velocity of 12 cm/s to the right when it is hit by another ball. It continues moving right at a velo

city of 21 cm/s. If the collision lasts 0.45 seconds, what is the ball's acceleration?
A.+9 cm/s2
B.20 cm/s2 to the right
C.26 cm/s2 to the right
D.+46 cm/s2

Physics

1 answer:

madam [21] · Answer 1 · 2022-03-18T15:52:51+03:00

madam [21]3 years ago

6 0

Answer:

B

Explanation:

Acceleration = rate of change in velocity

a = (21-12)/(0.45) = 20cm/s^2