Physics collisions question?

Suppose a child drives a bumper car head on into the side rail, which exerts a force of 2400 N on the car for 0.500 s. (Assume the initial velocity is in the positive direction.) (a) What impulse (in kg · m/s) is imparted by this force? (Indicate the direction with the sign of your answer.) Incorrect: Your... show more Suppose a child drives a bumper car head on into the side rail, which exerts a force of 2400 N on the car for 0.500 s. (Assume the initial velocity is in the positive direction.)
(a)
What impulse (in kg · m/s) is imparted by this force? (Indicate the direction with the sign of your answer.)

Incorrect: Your answer is incorrect.
kg · m/s
(b)
Find the final velocity (in m/s) of the bumper car if its initial velocity was 2.90 m/s and the car plus driver have a mass of 200 kg. You may neglect friction between the car and floor. (Indicate the direction with the sign of your answer.)
m/s
1 answer 1