Abaseball has a momentum of 6.0 kg•m/s south and a mass of 0.15 kg. what is the baseball's velocity?

40 m/s

Explanation:

The momentum of an object is given by:

where

m is the mass of the object

v is its velocity

In this problem, we know:

p = 6.0 kg m/s is the momentum of the baseball

m = 0.15 kg is its mass

Therefore, we can re-arrange the equation to find the baseball's velocity:

t = 1/400 h   ⇔ 0.0025 h ⇔ 9s ⇔ 0.15 m

any of the answers are correct.