Suppose you are spending your weekend on roller skates trying to get momentum from somewhere. Which of the following will give you momentum in the north direction?
A) Throwing your keys southward.
B) Throwing your keys northward.
C) Bending down and throwing your keys straight up.
D) (B) or (C).

Question

Quizplus · Accepted Answer

Throwing your keys southward will give you momentum in the opposite direction, which is north, due to the conservation of momentum.

Suppose You Are Spending Your Weekend on Roller Skates Trying