A 1500 kg car with the brakes applied comes to a stop in 6.00 s. During these 6.00 s the force of friction slowing down the car is 2600 N. What is the change in momentum of the car?
The change in momentum of an object is given by the formula:
Change in momentum = Force * Time
In this case, the force of friction is slowing down the car, so the force is opposing the motion and is negative. Thus, we have:
Change in momentum = (-2600 N) * (6.00 s)
Change in momentum = -15600 Ns
Since momentum is a vector quantity, the negative sign indicates the change in direction of the momentum.