Question

multiple - choice question
why is the impulse negative?
impulse and momentum are both vectors. in this case, the direction of the impulse is to the direction of the momentum.
its a misprint on the slide. impulse is not supposed to be negative.
impulse is a scalar. the negative means it is below zero.

Explanation:

Impulse is a vector quantity. A negative impulse indicates its direction is opposite to the chosen positive - direction. The first option correctly states that impulse and momentum are vectors and the negative sign can represent direction. Impulse can be negative. It is not a scalar.

Answer:

Impulse and momentum are both vectors. In this case, the direction of the impulse is opposite to the direction of the momentum.