The formula v= square root 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 75 feet. Round to the nearest tenth.

Question

A. 6.9 ft/s
B. 69.2 ft/s
C. 69.4 ft/s
D. 69.3 ft/s
Is the answer D?

Answer 1

I agree.

With the equation v= √64h, you plug in 75 as h. Next, you multiply them to get 4,800. This would be √4,800.

Now, you solve that. the square root of 4.800 is 69.282032302755091741097853660235.

69.282032302755091741097853660235 is closer to the answer for D than any of the others, so D has to be the answer.

I hope this helps! :)