You operate a truck-mounded crane. The boom on the crane can be adjusted for both height and length. While lifting a heavy load, you feel the truck start to tip.
What should you do?
A) shorten the beam.
B) lenghthen the beam
C) lift more quickly
D) lift more slowly
E) raise the beam higher
2007-02-26 09:49:03 · 2 answers · asked by max 1 in Science & Mathematics ➔ Physics
Shorten the beam. Torque, which is the tendency of an object to rotate around its fulcrum, is dependent upon the force and its distance from the fulcrum. The farther from the fulcrum, the less force is necessary, so if you don't change the force (the weight of the load) then you need to shorten the beam to lessen the torque.
2007-02-26 09:55:49 · answer #1 · answered by thom1102 2 · 0⤊ 0⤋
I think it`s A.
2007-02-26 17:54:08 · answer #2 · answered by runescape sucks 3 · 1⤊ 0⤋