a bus decreases its speed from 100km/hr to 70km/hr in 5sec. Find the acceleration of the bus.
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Answered by
1
acceleration= v2- V1/t
100kmph=500/18 m/s=v1
70kmph=350/18 m/s=V2
a=(350/18 - 500/18)/5
=5(-150)/18=-750/18=(-125)/3m/s^2
=(-41.6m/s^2)
Answered by
1
U= initial velocity= 80 km/h = 22.2 m/s
v= final velocity = 60 km/h = 16.7 m/s
t= time = 5 s
a= acceleration = ?
a=v-u/t
a= 16.7-22.2/5
a= -5.5/5
Therefore, a=-1.1 m/s^2
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