500
1)A 550 kg car travels east across a level straight road at 87 m/s. What will be the car’s velocity after a 40050 N westward impulse is applied to the car?
2)A 7.5 kg lab cart is accelerated uniformly from rest to a speed of 7.5 m/s in 2.5s. What is the magnitude of the force producing this acceleration?
(Impulse)
1) Vf= -60.82 m/s
2) F= 22.5N