Multiple choice

A plane flies a distance of 1800 km in 5 hours. What is its average speed in meter/second?

  1. 200

  2. 10

  3. 20

  4. 100
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D Correct answer
Explanation

Speed = Distance / Time = 1800 km / 5 hours = 360 km/hr. To convert to m/s, multiply by 5/18: 360 * (5/18) = 20 * 5 = 100 m/s.

AI explanation

Using the formula for speed, which is distance divided by time, the average speed is 1800 kilometers divided by 5 hours, resulting in 360 kilometers per hour. To convert this to meters per second, multiply by 5 divided by 18. This calculation gives 360 multiplied by 5 divided by 18, which equals 100 meters per second.

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