A train is 200 meters long and is moving at a speed of 72 km/h. How long will it

₹0.0

Question: A train is 200 meters long and is moving at a speed of 72 km/h. How long will it take to completely pass a pole?

Options:

Correct Answer: 8 seconds

Solution:

Speed in m/s = 72 * (5/18) = 20 m/s. Time = Length / Speed = 200 m / 20 m/s = 10 seconds.

A train is 200 meters long and is moving at a speed of 72 km/h. How long will it take to completely pass a pole?

A train is 200 meters long and is moving at a speed of 72 km/h. How long will it take to completely pass a pole?

Step 1: Convert the speed of the train from kilometers per hour (km/h) to meters per second (m/s). Use the conversion factor: 1 km/h = 5/18 m/s.
Step 2: Multiply the speed of the train (72 km/h) by the conversion factor (5/18) to get the speed in m/s.
Step 3: Calculate the speed: 72 * (5/18) = 20 m/s.
Step 4: Identify the length of the train, which is 200 meters.
Step 5: Use the formula for time, which is Time = Length / Speed.
Step 6: Substitute the values into the formula: Time = 200 m / 20 m/s.
Step 7: Calculate the time: 200 / 20 = 10 seconds.

Unit Conversion – Converting speed from kilometers per hour to meters per second.
Distance, Speed, Time Relationship – Understanding the formula Time = Distance / Speed to calculate the time taken to pass an object.