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science
moments,leversand center of gravity
Term | Definition |
---|---|
moment of a force | force X perpendicular distance from fulcrumto the line of action of the force |
unite for moment | Nm |
lever | a rigid body that can turn about a fixed point called a fulcrum |
law of the lever | when a lever is balanced the sum of the clockwise moments equal the sum of the anticlockwise moments |
the center of gravity of an object | a pointin the objectthrough which all the wightof the objectappears to act |