M.p.h.

[edit]

Anyway, lets get started: I want to show you how to measure the miles per hour of your zz or any micro rc.

First measure 10 ft. somewhere flat in your house. Then time how long it takes for your car to go the 10 ft. Multiply the time times 10. Now we have x seconds.

(fractions)100 ft./x sec. times 60 sec/1 min times 60 min/1 hour. I fyou cross cancel the min. and sec. and multiply, you have 360,000ft./x hrs.

Now there are 5,280 ft. in a mile

1 mile/5280 ft. times 360,000 ft./x hours. cross cancel the ft. and you have 360,000 mi/5280 times x hours.

Divide 5280 times x hours into 360,000.

Helpful hint: if 5280 times x hours ends in 1 zero take that zero out and divide 5280 times x hours - 1 zero into 36,000. If 5280 times x hours ends in 2 zeros, take those zeros out and divide 5280 times x hours - 2 zeros into 3,600. And so on , up to 4 zeros.

Happy timing!