Question

${\sf{\underline{\Large{\blue{ Question :}}}}}$
A bus decreases it's speed from 80 km h -1 to 60 km h -1 in 5s.Find the acceleration of the bus.



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Answer 1

Explanation:

Acceleration-final velocity -initial velocity

Time

12

4.0

Here,

Final velocity (v) =60km/h = 16.6 m/s

Initial velocity (u) = 80km/h = 22.2m/s

Time = 5seconds

Acc. 16.6-22.2/5

Acc. = -1.12 m/s²

Acceleration will be -1.12m/s²

Answer 2

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Refer to attachment