A train takes 10 seconds to cross a pole. If the train is 200 meters long, what

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Question: A train takes 10 seconds to cross a pole. If the train is 200 meters long, what is its speed?

Options:

Correct Answer: 36 km/h

Solution:

Speed = Distance / Time = 200 m / 10 s = 20 m/s. Converting to km/h: 20 m/s * (18/5) = 72 km/h.

A train takes 10 seconds to cross a pole. If the train is 200 meters long, what is its speed?

A train takes 10 seconds to cross a pole. If the train is 200 meters long, what is its speed?

Step 1: Identify the length of the train, which is 200 meters.
Step 2: Identify the time it takes for the train to cross a pole, which is 10 seconds.
Step 3: Use the formula for speed, which is Speed = Distance / Time.
Step 4: Plug in the values: Speed = 200 meters / 10 seconds.
Step 5: Calculate the speed: 200 / 10 = 20 meters per second (m/s).
Step 6: To convert the speed from meters per second to kilometers per hour, use the conversion factor: 1 m/s = 18/5 km/h.
Step 7: Multiply the speed in m/s by the conversion factor: 20 m/s * (18/5) = 72 km/h.

Speed Calculation – Understanding the formula for speed, which is distance divided by time.
Unit Conversion – Converting speed from meters per second (m/s) to kilometers per hour (km/h).