Kinematics Question 382
Question: Two trains, each 40 m long are travelling in opposite direction with equal velocity 20 m/s. The time of crossing it’s
Options:
A) 1s
B) 2s
C) 3s
D) Zero
Show Answer
Answer:
Correct Answer: B
Solution:
$ \text{Time=}\frac{\text{total length}}{\text{relative velocity}}\text{=}\frac{\text{X+X}}{\text{20+20}}\frac{2X}{40}s $
$ =2s $
