Physics, asked by lmenon280, 7 months ago

20) Two trains A & B of lengths 124m & 200m travel along parallel tracks with velocities
36km/h and 72km/h respectively. Find the time of crossing when trains are moving in the same direction with the train B running behind A ​

Answers

Answered by ERB
4

Answer:

32.4 seconds

Explanation:

total distance = (124 + 200) m = 324 m

velocity of A = 36 km/h = 10 m/s

velocity of B = 72 km/h = 20 m/s

relative velocity = (20-10) m/s = 10 m/s

time of crossing = 324/10 = 32.4 seconds

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