Question

The maximum speed that an X43A plane can reach is 7,500 miles per hour. At this speed, how many feet

can the X43A travel in 1 second? (1 mile = 5,280 feet)

Answer 1

11000 feet/seconds

Explanation:

This problem requires that we convert from miles per hour to feet per seconds

Given that the speed of the X43A plane is 7500 mph

and that 1 mile = 5,280 feet)

`=(7500miles)/(h) *(5280 feet)/(mile) (1hour)/(3600 seconds) \\\\=(7500*5280)/(3600) \\\\=(396*10^5)/(3600) \\\\=11000 feet/seconds\\\\=11*10^3feet/seconds\\\\`

Therefore the speed of the X43A plane in feet per second is 11000