Acompact car, mass 660 kg, is moving at 1.00 ✕ 102 km/h toward the east. the driver of the compact car suddenly applies the brakes hard for 2.1 s. as a result, an average force of 4.8 ✕ 103 n is exerted on the car to slow it down. (a) what is the change in momentum, that is the magnitude and direction of the impulse on the car?

Explanation:

Given

mass of car

Initial velocity of car towards east

Time taken to stop

Force exerted

change in momentum is given  by impulse imparted to the car

negative Sign indicates that impulse is imparted opposite to the direction of motion

magnitude of momentum

+15-35=-20

going in opposite directions

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//