Question

A car of mass 1000 kg is moving with initial velocity 14 m/s, suddenly brakes are applied and it comes to rest in 2 s. Find the force applied on it.

Answer 1

Answer:

hi, thanks for asking the ques

Explanation:

Given,

Final velocity, v=0

Initial velocity, u=30ms

−1

Force = mass x acceleration

F=ma

a=F/m=−5000/1000=−5ms

−2

From the First equation of motion,

v=u+at

0=30+(−5t)

0=30−5t

5t=30

t=30/5

t=6

Hence, after6sec car will stop.

hope this helps u out

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