Question

The formula v = (radical)64h can be used to find the velocity v in feet per second of an object that has fallen h feet. Find the velocity of an object that has fallen 23 feet. Round your answer to the nearest hundredth.

A ) 184 feet per second
B ) 306.93 feet per second
C ) 38.37 feet per second
D ) 736 feet per second

Answer 1

V = sqrt (64h)
V = sqrt (64 * 23)
V = sqrt 1472
V = 38.366 rounds to 38.37 ft <==

Answer 2

The answer is the option C

`V=38.37\ ft/sec`

Explanation:

we have that

`V=√(64h)`

In this problem we have

`h=23\ ft`

Substitute in the formula and solve for V

`V=√(64(23))`

`V=√(1,472)\ ft/sec`

`V=38.37\ ft/sec`