Question

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

A. 0 kg * m/s
B. -670 kg * m/s
C. - 814 kg * m/s
D. - 550 kg * m/s

Answer 1

hint:
both impulses have to be opposite each other

Answer 2

ohh the solution is choice B?

Answer 3

yes!

Answer 4

yay!! thank you!!

Answer 5

thanks!! :)