Question

A bus decreases its speed from 80 km/h to 60 km/h in 5 secs find the acceleration of the bus

Answer 1

• initial velocity =80km/hr

80×(5÷18)= 22.22

• final velocity=60km/hr

60×(5÷18)=16.66

• time=5sec
• acceleration = (v-u)÷t

(16.66-22.22)÷5=-1.112

Answer 2

Answer:

Initial velocity= 80km/ h=200/9 m/s

final velocity= 60 km/h= 150/9 m/s

and time taken = 5sec

so acceleration= 200/9-150/9÷5

50/9/5

solve it further