Kinematics Question 307

Question: Two trains, each 50 m long are travelling in opposite direction with velocity 10 m/s and 15 m/s. The time of crossing it’s [CPMT 1999; JIPMER 2000; RPET 2001]

Options:

A) 2s

B) 4s

C) 23s

D) t=ν1ν2a

Show Answer

Answer:

Correct Answer: B

Solution:

Time =Total length Relative velocity =50+5010+15=10025=4 sec



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