Question

A pitcher in a professional baseball game throws a fastball, the baseball has a mass of 0.145kg and a speed of 54m/s. What is the momentum of the ball at this speed?

Answer 1

The momentum is defined as:

$p=mv$

where m is the mass and v is the velocity; plugging the values given we have:

$p=(0.145)(54)=7.83$

Therefore the momentum of the ball is 7.83 kg*m/s