Question

A bus in motion increase its speed from

30 km h-1

to 60 km h-1

in 20 seconds.

Find its acceleration.

1) 0.21 m s-2

2) 0.42 m s-2

3) 0.63 m s-2

4) 0.84 m s-2​

Answer 1

Explanation:

u = 30km/h

v = 60km/h

t = 20s

a = v-u/t

a = 60-30/20

a = 30/20

a = 1.5