A bus decrease it’s speed from 80 kilometres per hour to 60 kilometres per hour in 5 seconds . Find the acceleration of the bus.

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Answer:v=u+at

Step-by-step explanation:Initial speed u=80 km/h=80× 18/5 =22.22 m/s

Final speed v=60 km/h=60× 18/5

=16.67 m/s

Using v=u+at

Or 16.67=22.22+α×5

⟹ a=−1.1 m/s^2