A tiny bug smashes into the windshield of a giant truck. Which undergoes the larger momentum change as a result of the collision?

A) Bug

B) Car

C) Same

D) Depends

Solution: The forces are equal and opposite by Newton's third law. So the impulses are equal and opposite by the definition of impulse. And so the changes in momentum (due to the collision) are equal and opposite by the impulse-momentum theorem.

Another option would be to analyze the situation using conservation of momentum.