Question

A parachutist rates during a freefall is 117 mph what is this rate in feet per second at this rate how many feet will the parachutist fall during a two seconds of freefall and computations use the fact that 1 mile is equal to 5280 feet

Answer 1

A) Rate in feet per sec = 171.6 feet per sec

B) Distance in feet for 2 sec free fall = 343.2 feet

Explanation:

Given in question as

Speed of parachutist during freefall = 117 mile per hour

A) Rate in feet per second

Given as 1 mile = 5280 feet

So, 117 mile = 117 × 5280 = 617760 feet

∴ in feet per second
`(617760)/(3600)` = 171.6 feet per sec

B) Distance cover by parachutist for 2 sec

distance = speed × time

So, D = 171.6 feet per sec × 2 sec

Or, Distance = 343.2 feet