A train 110 metres long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
Relative speed=s=s1+s2=60+6=66kmph=66*(5/18)=55/3m/sec Distance=d=110metres Time=t=d/s=110/(55/3)=6sec Ans:6 seconds
Speed of train relative to man = (60 + 6) km/hr = 66 km/hr. = (66*5/18) m/sec = 55/3 m/sec. Time taken to pass the man = (110*3)/55 = 6 sec.
A train 220 m long is running with a speed of 60 kmph. In what time will it pass a man who is running at 6 kmph in the direction opposite to that in which the train is going?
A jogger running at 9 kmph alongside a railway track in 240 metres ahead of the engine of a 120 metres long train running at 45 kmph in the same direction. In how much time will the train pass the jogger?
How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
A 270 metres long train running at the speed of 120 kmph crosses another train running in opposite direction at the speed of 80 kmph in 9 seconds. What is the length of the other train?
