Physics, asked by sant15338180, 2 months ago

Calculate the work done by the brakes of a car of mass 1000 kg when its speed is reduce from 20m/s to 10m/s

Answers

Answered by abisiva2016

Answer:

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Explanation:

We have to calculate the work done by the brakes when the speed of the car is reduced from 20 m/s to 10 m/s. So, the work done by the brake will be the difference of their kinetic energies. So, the work done by the brakes to reduce the speed of the car from 20 m/s to 10 m/s is (- 150,000) J.

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