Question

29. One day Mohan was going to his school by bus. The bus was travelling at a constant

velocity of 10 m/s. When the driver spotted a child 50 m in front of him on the road, he applied

the brakes to stop the bus. The bus accelerates at rate of -1.25 m/s2

. His reaction time to hit the

brakes was 0.5 seconds. Mohan observed that the total distance travelled by bus in this time is 45

metres and the bus could not hit the child.

Answer the following questions based on above event:

(a) What value is developed to Mohan by this example?

(b) Why drivers are cautioned to maintain some distance between vehicles while travelling on

the road?

(c ) Which concept of physics leads to secure when we are driving the vehicle on the road?​

Answer 1

Explanation:

A bus is moving with a constant velocity 10m/s on a straight road. a scooterist wishes to overtake the bus in 100s . if the bus is at distance of 1km from the scooterist ,then the velocity with which scooterist should chase the bus is?