Question

A parachutist's rate during a free fall reaches 117 miles per hour. What is this rate in feet per second? At this rate, how many feet will the parachutist fall during 10 seconds of free fall? In your computations

Answer 1

1. rate = 171.6 feet/second

2. 1716 feet

Explanation:

1. To convert from miles per hour to feet per second,

1 mile = 5280 feet

117 miles = 617760 feet

1 hour = 3600 seconds

Thus the rate in feet per second will be;

=
`(617760)/(3600)`

= 171.6 feet/second

2. In 10 second of free fall,

speed =
`(distance)/(time)`

distance = speed x time

= 171.6 feet/second x 10 second

= 1716 feet

The parachutist would fall 1716 feet in 10 seconds of free fall.