A train 250 m long, running with a speed of 63 km/hr will pass a tree in ____?
- 38.8
- 30
- 10.8
- 14.3
Explanation
To solve this problem, we need to convert the speed from km/hr to m/s and then use the formula:
Time = Distance / Speed
First, let's convert the speed:
63 km/hr = 63 x (1000 m / 3600 s) = 17.5 m/s
Now, let's calculate the time:
Time = Distance / Speed
= 250 m / 17.5 m/s
= 14.3 seconds
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