9th Class
Science
Time and Motion
Question Bank
9th CBSE Science Motion
question_answer
The
driver of train A travelling at a speed of 54 kmh-1 applies brakes
and retards the train uniformly. The train stops in 5 s.
Another train B is travelling on the parallel with a speed of 36 kmh-1.
Its driver applies the brakes and the train retards uniform madly; train B
stops in 10 s. Plot speed-time graphs for both the trains on the same axis.
Which of the trains travelled farther after the brakes were applied?