For a wheel and axle in which the effort force is applied at the rim of the wheel, what change reduces the effort force required for a given resistance force?
a. increase the radius of the wheel
b. reduce the radius of the wheel
c. increase the length of the axle
d. increase the radius of the axle
I think it's a. Am I correct and if i'm not, could someone explain why it's another choice?
Thanks
2007-03-01 14:19:06 · 3 answers · asked by Lilaznboi2011 2 in Science & Mathematics ➔ Engineering
I agree.
The radius of your wheel is the length of the lever. So the longer the lever the greater the output. Or for the same output, less input force would be required.
2007-03-01 14:27:35 · answer #1 · answered by evokid 3 · 0⤊ 0⤋
the answer is a. larger diameter wheels roll easier...
2007-03-01 22:23:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I had a friend once who we said was a sinple machine for turning beer into piss
to answer your question...A
2007-03-01 22:28:21 · answer #3 · answered by Anonymous · 0⤊ 1⤋