Homework Statement
A ball with momentum of 10 kg-m/s [E] hits an object and rebounds with momentum of 6 kg-m/s [W]. What was the change in momentum?
Homework Equations
delta p=p(final)-p(initial)
The Attempt at a Solution
delta p=p(final)-p(initial)
delta p=(6 kg-m/s)-(10 kg-m/s)
delta p=...