Question

Q.36 A bus increases its speed from 40 km/h to 100 km/h in 20 seconds. Its acceleration is:​

Answer 1

Answer:

Intial Velocity = u = 200km/hr = 20x5/8 5.56m/s

Final velocity = v=50 km/hr= 50 x5/18 13.89m/s

Time T 10 sec Acceleration =a (13.89-5.56) /10 Ans = 0.833m/s ( square)

Answer 2

Answer:

Intial Velocity = u = 40 km/h  =

Final velocity = v=50 km/hr

t = 20s

According to formula

v - u = at

50  - 40 = 20 a  

10 = 20 a

a = 10 / 20

a = 0.5 m/s^2

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