Question

2. A bus decreases its speed from
80 km h-1 to 60 km h-1 in 5 S.
Find the acceleration of the bus.​

Answer 1

Answer:

Initial velocity=80km/hr or 22.2m/s

Final velocity=60km/hr or 16.6m/s

acceleration=final velovity-initial velocity/time

16.6-22.2/5

-5.6/5

Acceleration=-1.12m/s²

Retardation=-1.12m/s²

Step-by-step explanation:

Hope this helps.

Answer 2

Answer:

a= -14,400 km/h

Step-by-step explanation:

acceleration=v-u/t

a=60000-80000/5

a= -20000/5

a=-4,000m/s

a= -14,400 km/h

- a=14,400 km/h

negative acceleration is called deceleration

d=14,400 km/h

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