A bus decreases its speed from180 km h to 60 km h in 5 s.Find the acceleration of the bus.​

Answers (1)

if we take speed in km/h and then take time in h

So 

t = 5 s

➜ t = 5/3600 h

a=\frac{v-u}{t}=\frac{60-180}{\frac{5}{3600}}=-720 Km/h

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