Question

5. Two people push a car for 3 s with a combined net force of 200 N.
a. Calculate the impulse provided to the car.
If the car has a mass of 1200 kg, what will be its change in velocity.​

Answer 1

Answer:6000 kg m/s , 1/2 m/s

Explanation:

Impulse = ft

             = 200 kg m/s x 3 s

             = 600 kg m/s

Change in momentum = 600 kg m/s

Mass = 1200 kg

Change in velocity = $\frac{Change in momentum}{Mass}$

                               = 600/1200

                               = 1/2 m/s