I need to no for our 7th grade Science olympiad the mechanical advantage formula and the actual mechanical advantage formula for a wedge, screw ,lever, pulley, inclined plane, and wheel and axel.
any answers will be very apperciated plz respond guys !!!!!!!!!!!!!!!!!!!!!!!!!!!!!
2007-03-05 09:24:21 · 1 answers · asked by $-<Connor>-$ 1 in Science & Mathematics ➔ Physics
The webpage http://en.wikipedia.org/wiki/mechanical_advantage says
Ideal Mechanical Advantage = DE/DR
where DE equals the effort distance and DR equals the resistance distance.
Effort distance means the distance the applied force moves. Resitance distance means the distance the load moves. Example for the wedge: DE would be the distance along the incline, DR would be the height the load gained.
The link called "simple machines" will show you several examples
2007-03-05 11:42:14 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋