The distance from London to New York is 3456 miles. A plane takes 8 hours to fly from London to New York. Work out the average speed of the plane.
Answer (2)
Define distance as d = 3456 miles and time as t = 8 hours.
Calculate the average speed using the formula: s p ee d = t im e d i s t an ce .
Substitute the given values into the formula: s p ee d = 8 3456 .
Compute the result to find the average speed: s p ee d = 432 mph. The average speed of the plane is 432 mph .
Explanation
Understanding the Problem We are given the distance from London to New York, which is 3456 miles, and the time it takes a plane to fly between these cities, which is 8 hours. We need to find the average speed of the plane.
Stating the Formula To find the average speed, we will use the formula: s p ee d = t im e d i s t an ce where distance is measured in miles and time is measured in hours. This will give us the speed in miles per hour (mph).
Substituting the Values Now, we substitute the given values into the formula: s p ee d = 8 hours 3456 miles
Calculating the Speed Performing the division, we find: s p ee d = 432 mph So, the average speed of the plane is 432 miles per hour.
Final Answer Therefore, the average speed of the plane is 432 miles per hour.
Examples
Understanding average speed is crucial in many real-life scenarios. For instance, when planning a road trip, knowing the average speed you'll be traveling helps you estimate the time it will take to reach your destination. Similarly, in sports, calculating a runner's average speed over a certain distance can help assess their performance and compare it to others. This concept is also vital in logistics and transportation, where optimizing speed and delivery times is essential for efficiency and cost-effectiveness. Knowing how to calculate average speed allows you to make informed decisions and predictions in various everyday situations.
The average speed of the plane flying from London to New York is calculated using the formula speed = distance/time. Substituting the values, we find that the average speed is 432 miles per hour. Thus, the airplane travels at an average speed of 432 mph.
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