Question

A bus starts from rest and accelerates uniformly to the velocity of 54 kilometre per hour in 20 seconds how much is saying that the bus travel in 20 seconds

Answer 1

U=0m/s
V=54km/h=54/60×1000/60=90m/s
T=20s
Since,
V=u+at
:. putting value
90=20a
90/20=a
A=9/2s
Now,
S=UT+1/2at²
S=1/2(9/2)(20)(20)
S=10×10×9=900m=.9km
(ÆÑẞWĒR)