Question

A pitcher throws a baseball at 45 m/s. The baseball has a mass of 400 grams. Disregarding air resistance, the baseball's momentum when it hits the catcher's mitt is a0 kg*m/s.

Answer 1

Momentum = (mass) x (speed)

= (0.4 kg) x (45 m/s)

= 18 kg-m/s in the direction from the mound to the plate.