a car starts from rest and attains a velocity if 18km/h in 2s. Find its acceleration
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if a car starts from rest then its initial velocity becomes zero
u=0
according to the question given that
v= 18 km /hr
on changing it into m/ s
so 15 ×5/18
v= 5 m/ s
t= 2 sec.
by I st equation of motion
v=u +at
5=0+a× 2 .
so a = 2.5 m /s^2
u=0
according to the question given that
v= 18 km /hr
on changing it into m/ s
so 15 ×5/18
v= 5 m/ s
t= 2 sec.
by I st equation of motion
v=u +at
5=0+a× 2 .
so a = 2.5 m /s^2
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