Question

A vehicle weighing 1000 kg and travelling at 30 m/s stops at a distance of 50 m while
undergoing retardation. What is the force exerted on it by the brakes? What is the work done by the breaks? What assumptions are made in the calculations?

Answer 1

Step-by-step explanation:

first of all we find acceleration by using the formula that is v2-u2=2as after solving we got accelaration=18m/s2 .I Force=mass×acc. so force is 18000newton.

ii work=force×mass so work is 900000joule.

Answer 2

Answer:

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