Question

Ramesh was driving a car at 20m/s. He applied brakes which generated force equal to -500N. Find the distance after which car will stop if its weight is 100kg.

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

f = ma

-500 = 100 × a

a = -5 m/s^2

v = u + at

0 = 20 -5t

t = 4 seconds

s = ut + 1/2at^2

s = 20×4 + 1/2(-5)(16)

s = 80 - 40

s = 40m