Question

A car moving with a velocity of 40 metre per second per second suddenly apply breakers and come to rest in next 5 second calculate retardation produce in the car?​

Answer 1

u = 40

v = 0

t = 5s

a = ?

a = v-u/t

a = -40/5

a = -8 m/s2

Retardation = -8 m/s2

Answer 2

Answer:

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Explanation:

U =20m/s

a =2 m/s2

t =5 s

v=u+at

v=20+-5(2)

v=20-10

v=10m/s