If the pole-vaulter were to land on concrete rather than on a cushion, the impulse that stops the fall would be what?
A) Greater because of the rigidity of the concrete.
B) Greater because of the force of impact is greater.
C) The same because impulse is the change in momentum of the object.
D) Less, because he would come to a stop over a shorter period of time.
E) Less, because there is less change in momentum during the stop.
2 answers
a faster stop (because concrete is hard) means a greater impulse
the same bc impulse is the change in momentum of the object.