a bus decreases its speed from 80km h-1 to 60km h-1 in 5secs . find the acceleration of the bus ?
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We are given that,
v= 60km h-1
u= 80km h-1
t= 5sec
We know that,
a= v-u÷t
a= 60-80÷5
= -20÷5= -4km h-1
Hence, the acceleration is negative so it is a case of retardation.
v= 60km h-1
u= 80km h-1
t= 5sec
We know that,
a= v-u÷t
a= 60-80÷5
= -20÷5= -4km h-1
Hence, the acceleration is negative so it is a case of retardation.
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