chanahbenjamin chanahbenjamin

07-02-2022
Physics

contestada

A 200 kg motorcycle initially moving at 20 m/s applies its brakes. How
much work was done to stop the motorcycle?

Respuesta :

zsm2800 zsm2800

15-02-2022

Answer:

-40,000 J

Explanation:

Initial kinetic energy E1 = mv^2/2 = 200*20^2/2 = 40,000 J

Final kinetic energy E2 = 0

Work done = E2 - E1 = -40,000 J

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