A bus decreases its speed from 80 km h-' to 60 km'h in 5s. Find the acceleration of the bus.
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Answer:
1.32 m/sec ^2
Explanation:
initial velocity = 80 km/hr = 80*5/18. m/sec = 22.2 m/sec
final velocity = 60 km/hr =60 *5/18 m/sec = 16.66 m/ sec
t = 5 sec
acceleration =change in velocity / time
= 22.2 - 16.6 / 5
= 1.32 m/ sec^2
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