Does anyone know the equation...?

0 ⤊

Does anyone know the equation...?

...used to determine where the fulcrum of a class 1 lever has to be for it to be balanced when the load on each side is a different weight?

2006-12-09 07:20:08 · 3 answers · asked by the_plastic_plane 2 in Science & Mathematics ➔ Physics

3 answers

The moment = force x distance it is away from the fulcrum.

3 lbs 12 feet away from the fulcrum = 9 lbs 4 feet away from the fulcrum (as an example)

3 x 12 = 9 x 4

2006-12-09 07:45:14 · answer #1 · answered by rosie recipe 7 · 0⤊ 0⤋

The moments have to balance. Moment is force times moment arm.

So,

load1 x d1 = load2 x d2

where loads are weights, or masses
d1, d2 are the distances from the fulcrum.

2006-12-09 07:23:26 · answer #2 · answered by modulo_function 7 · 0⤊ 0⤋

f +1 = a -b (C)

2006-12-09 07:28:02 · answer #3 · answered by mernieinc 4 · 0⤊ 0⤋