The average braking force of a 1000-kg car moving at 10 m/s braking to a stop in 5 s is

Name: The average braking force of a 1000-kg car moving at 10 m/s braking to a stop in 5 s is
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Quizplus · Accepted Answer

The change in momentum is equal to the impulse, which is the average force multiplied by the time. The initial momentum is 1000 kg * 10 m/s = 10000 kg*m/s. The final momentum is 0 kg*m/s. The change in momentum is 10000 kg*m/s. The impulse is 10000 kg*m/s = F * 5 s, so F = 2000 N.

The Average Braking Force of a 1000-Kg Car Moving at 10