Question

18. 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?

Answer 1

heya..


Given :
Uniform acceleration =a=4m/s2
Time=t=?
Initial speed =u=0m/s
Distance =800m
Final velocity =v=?

From Second equation of motion:

S=ut + 1/2at^2800
=0*t +1/2 4*t^2t^2
=400
t=20sec

V=u+at
=0+4×20
=80m/s

Therefore final velocity =80m/s


tysm.....#gozmit

Answer 2

Explanation:

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