A bike decreases its speed from 60 kmph to 40 kmph in 5 seconds. Find the acceleration of the bus.
Given, initial speed of the bus, u=60 kmph=60×518=16.67 ms−1
final speed of the bus, v=40 kmph=40×518=11.11 ms−1
Time taken to decrease the speed, t = 5 s
We know, acceleration, a=v−ut=11.11−16.675=−1.11 ms−2