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प्रश्न
A 150 m long train is moving with constant velocity of 12.5 m/s. Find time taken to cross a pole
उत्तर
Length of the train = 150 m
Constant velocity of the train = 12.5 m/s
Time taken to cross a pole:
The equation of motion is y = 12.5 x – 150
To find the time taken to cross the pole,
Put y = 0
0 = 12.5 x – 150
⇒ 12.5 x = 150
⇒ x = `150/12.5`
= 12 sec
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