walking speed

• Sep 2nd 2010, 11:36 AM
bigwave
walking speed
This should be a very easy problem. but the way it is worded might confuse

The maximum walking speed $\displaystyle S$ (in feet per second) of an walking animal is given by the function $\displaystyle S = \sqrt{GT}$ where $\displaystyle G$ is $\displaystyle 32$ feet per second squared and $\displaystyle L$ is the length of the animal's leg (in feet)

How fast can an animal whose legs are $\displaystyle 9$ inches long walk?

The answer to this is $\displaystyle 12\sqrt{2}$ or $\displaystyle 16.97$but don't see how this was derived
• Sep 2nd 2010, 12:45 PM
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Quote:

Originally Posted by bigwave
This should be a very easy problem. but the way it is worded might confuse

The maximum walking speed $\displaystyle S$ (in feet per second) of an walking animal is given by the function $\displaystyle S = \sqrt{GT}$ where $\displaystyle G$ is $\displaystyle 32$ feet per second squared and $\displaystyle L$ is the length of the animal's leg (in feet)

How fast can an animal whose legs are $\displaystyle 9$ inches long walk?
The answer to this is $\displaystyle 12\sqrt{2}$ or $\displaystyle 16.97$but don't see how this was derived