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16-09-2019
Physics

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A body starts from rest and moves with a uniform acceleration of 4m/s2 until it travels a distance of 800m, find the find velocity?

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16-09-2019

Answer:

A=4 m/s2

s=800m

u=0 m/s

s=ut+ 1/2 at2

800=0+1/2*4*t2

800=2t2

400=t2

t=20 s

a=(v-u)/t

4=v-0/20

80=v

v=80 m/s

Explanation:

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