Question

A parachutist’s speed during a free fall reaches 135 miles per hour. What is the speed in feet per second? At this speed, how many feet will the parachutist fall during 10 seconds of free fall? In your computation, use the fact that 1 mile is 5280 feet

Answer 1

135 miles per hour

there are 3600 seconds in one hour, so simply divide 135 by 3600 to get the speed in miles per second

now, it says there are 5280 feet per mile, so multiply the previous rate to go from miles per second to feet per second

Answer 2

to calculate how many feet will be traveled in 10 seconds simply multiply the speed in ft/sec by 10 seconds