Question

Jackrabbits are capable of reaching speeds up to 40 miles per hour. How fast is this in feet per second? (Round to the nearest whole number.) 5,280 feet = 1 mile 27 feet per second 59 feet per second 132 feet per second 288 feet per second

Answer 1

`\Large \boxed{\mathrm{59 \ feet \ per \ second}}`

Explanation:

40 miles per hour

1 mile = 5280 feet

40 miles = 5280 × 40 = 211200 feet

1 hour = 3600 seconds

`\displaystyle \sf (211200 \ ft)/(3600 \ s)`= 58.666666666... ft/s

Answer 2

59 ft/second

Explanation:

40 miles / hour

Multiply by the conversion factors

40 miles 5280 ft 1 hour

------------ * -------------- * -----------

hour 1 mile 3600 seconds

Canceling the units

40 * 5280 ft/ 3600 seconds

58.6666666 ft/ second

To the nearest whole number

59 ft/second