natashaphiri798 natashaphiri798

11-07-2022
Physics

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a car travelling at 5m/s is brought to rest in a distance of 20m.Find it's decelaration and time taken.

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samanthaooi1113 samanthaooi1113

11-07-2022

Answer:

time taken= 8s

deceleration = -0.625ms^-2

Explanation:

s = 1/2(u+v)t (linear motion formula)

20 = 1/2 ( 5+0 ) t

t=time taken, find t

t= 8s

a= (v-u) / t

a= (0-5) / 8s

= -0.625 ms^-2

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