Question

a bus decrease it's speed from 60 km /hr to 40/hr in 5sec find its acceleration
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Answer 1

Answer:

a=v-u/t

a=40-60/5

a=-20/5

a=-5m/s

because the bus is decelerating

hope it helps you mark me as the brainliest

Answer 2

Answer:

-10/9 m/s

Explanation:

u = 60km/h = 60 x 5/18 m/s = 50/3 m/s.

v = 40km/h = 40 x 5/18 m/s = 100/9 m/s.

t = 5 s

a = (v-u)/t

a= -50/9 x 1/5

a = -10/9 m/s