A bus decreases its speed from up72 km h–1
to 36 km h–1
in 5 s. Find the acceleration of the bus.
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Answer:
-2m/s²
Explanation:
Initial velocity = 72 km/h= 72*5/18=20m/s
Final velocity = 36 km/h= 36*5/18=10m/s
Acceleration= (final velocity-initial velocity)/time
A=(10-20)/5
A=-10/5
A=-2m/s²
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