# 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...
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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

(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

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