Question

A long-haul commercial jet covers the 12,450 km from Beijing to Mexico City in 13.5 hours. What is its average speed?

Answer 1

To calculate the average speed of the long-haul commercial jet, you can use the formula for speed:

Speed = Distance / Time

In this case, the distance is 12,450 kilometers, and the time is 13.5 hours. Plug these values into the formula:

Speed = 12,450 km / 13.5 hours

Now, calculate the speed:

Speed ≈ 924.44 kilometers per hour

So, the average speed of the long-haul commercial jet is approximately 924.44 kilometers per hour.

Answer 2

Answer: 256.2 m/s (meters per second)

Explanation: Distance covered is 12450km and time used is 13.5hours. We first convert these values to standard units for distance (meters) and time (seconds).

12450 km = 12450 x 1000 m = 12,450,000 m

13.5hours = 13.5 x 60 x 60 = 48,600s

Average speed =
`(Distance)/(Time taken) = (12450000)/(48600) = 256.2m/s`

The average speed of the jet is 256.2m/s