7. A 1,700 kg car is being used to give a 1,400 kg car a push start by exerting a force of 140 N. The impulse on the smaller car during the 30.0 s of contact is +670 kgm/s. What is the impulse of the smaller car on the larger car?
(Points : 3)

670 kg*m/s

0 kg*m/s

550 kg*m/s

814 kg*m/s

Question

7. A 1,700 kg car is being used to give a 1,400 kg car a push start by exerting a force of 140 N. The impulse on the smaller car during the 30.0 s of contact is +670 kgm/s. What is the impulse of the smaller car on the larger car?
(Points : 3) 

 670 kg*m/s

 0 kg*m/s

550 kg*m/s

814 kg*m/s

inexilewetrust · Answer

@shamim

inexilewetrust · Answer

I know impulse can be found by dividing the mass by velocity. I know how to find momentum. But, I do not know how to apply impulse in this problem

inexilewetrust · Answer

@sammixboo  @sleepyjess  @satellite73