A bus decreases it's speed from 80km h-1 to 60 km h-1 in 5s. Find the acceleration of the bus?
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Answered by
1
a = change in speed / time
a = 80-60/5
a = 20/ 5/3600
a = 4*3600
a = 14400 km/hour^2
a = 80-60/5
a = 20/ 5/3600
a = 4*3600
a = 14400 km/hour^2
Answered by
1
Answer:
80 multiply 1000\60 multiply 60 = ms power -1 = 22.22 ms power -1
final velocity u = 60 kmph
= 60 multiply 1000\60 multiply 60 = 16.66 m s power -1
Time t = 5s , a = ?
a = u-u\t = 16.66 - 22.22\5 = -1.11 m s power -2
The acceleration of bus is -1.11 ms power -2
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