1
Question
Speed of a bus increases from 36km/h to 72km/h in 20 seconds. It's acceleration is:
Speed of a bus increases from 36km/h to 72km/h in 20 seconds. It's acceleration is:
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Solution
We have
u = 36 km/h
= 10 m/s
v = 72 km/h
= 72× 100 / 60 × 60
= 7200/ 360
= 20 m/s
t = 10 second
We know
A = V- U / t
= 20 - 10 / 10
= 1 m/s ^2
u = 36 km/h
= 10 m/s
v = 72 km/h
= 72× 100 / 60 × 60
= 7200/ 360
= 20 m/s
t = 10 second
We know
A = V- U / t
= 20 - 10 / 10
= 1 m/s ^2
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