A body starts from rest accelerates uniformly and attains a velocity of 20 m/s in 30s.Find its aceleration and displacement,it covers at that time
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initial velocity ( u ) = 0
final velocity ( v )=20m/s
time ( t )= 30sec
acceleration ( a )=?
a = v - u/t (a=v-u by t)
a= 20-0/30
a= 20/30
a=0.67m/s answer
displacement = s=ut+at²/2
s=0*30+0.67*(30)²/2
= 0+0.67*900/2
= 603/2
= 301.5m
final velocity ( v )=20m/s
time ( t )= 30sec
acceleration ( a )=?
a = v - u/t (a=v-u by t)
a= 20-0/30
a= 20/30
a=0.67m/s answer
displacement = s=ut+at²/2
s=0*30+0.67*(30)²/2
= 0+0.67*900/2
= 603/2
= 301.5m
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