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?
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Answered by
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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
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
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0
Explanation:
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