ernika03 ernika03

26-11-2021
Physics

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A 2457 kg car moves with initial speed of 18 ms-l. It is stopped in 62 m by its brakes.
What is the force applied by the brakes?

A 2457 kg car moves with initial speed of 18 msl It is stopped in 62 m by its brakes What is the force applied by the brakes class=

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Аноним Аноним

26-11-2021

Answer:

Explanation:

The work of the brakes will equal the initial kinetic energy of the car

Fd = ½mv²

F = mv²/2d

F = 2457(18²) / (2(62))

F = 6,419.903...

F = 6.4 kN

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