A boxer throws a punch with a force of 1500n that lasts 0.03s. What is the impulse of this punch?

Impulse is equal to the force applied multiplied by the time the force is applied for.

Impulse = Force x Time

Impulse = 1500 N x 0.03 s
Impulse = 45 N.s

Therefore, the impulse of the punch is 45 N.s.