. A train 150 m long moving at a speed of 25 m/s overtakes a man moving at 5 m/s in opposite direction . The train will pass the man in
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4
Let the speed of the train be v km/hr
Relative speed of the train = (v + 35) km/hr = [(v + 35) x 5/18] m/sec
∵ 150/5 = (v + 35) x (5/18)
(30*18)/5=v+35
108=v+35
v=73 km/hr
Relative speed of the train = (v + 35) km/hr = [(v + 35) x 5/18] m/sec
∵ 150/5 = (v + 35) x (5/18)
(30*18)/5=v+35
108=v+35
v=73 km/hr
Answered by
5
Answer:
The train will cross the man in 5 sec.
Explanation:
Speed = Distance / Time
Speed of train + Speed of man(in opposite direction) = Distance/Time
Put the given values , we get
25+5 = 150/time
30 = 150/time
time = 150/30
time = 5 sec
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