Kinematics Question 319
Question: An express train is moving with a velocity v1. it’s driver finds another train is moving on the same track in the same direction with velocity v2. To escape coll it’sion, driver applies a retardation a on the train. the minimum time of escaping coll it’sion will be [RPET 2002]
Options:
A)
B)
C) None
D) Both
Show Answer
Answer:
Correct Answer: A
Solution:
As the trains are moving in the same direction. So the initial relative speed
therefore
therefore
