STATICS OF THE BODY - THEORY 0.0 / 5 ? MedicineMedicineUniversityNone Created by: Kerion KomolafeCreated on: 31-10-19 23:51 EQUILIBIUM When the net force on that system is zero and the net torque on the system is also zero 1 of 11 DYNAMIC EQUILIBRIUM When a system is in motion and remains in equilibrium e.g. When a system is moving at constant velocity or rotating at a constant rate 2 of 11 STABLE EQUILIBRIUM If the system will return to equilibrium after a small displacement 3 of 11 UNSTABLE EQUILIBRIUM If the system will not return to equilibrium after a small displacement 4 of 11 TORQUE The tendency of a force (physical quantity) to rotate an object around a pivot, fulcrum or an axis 5 of 11 TORQUE (FORMULA) T = F x D (F=MAGNITUDE OF THE FORCE / D=LENGTH OF THE ROD) UNITS = N/m 6 of 11 POSITIVE TORQUE Motion in anti-clockwise direction 7 of 11 NEGATIVE TORQUE Motion in clockwise direction 8 of 11 FIRST CLASS LEVERS Weight (Load) + Muscle (effort) act on opposite sides of the fulcrum - Act in the same direction 9 of 11 SECOND CLASS LEVERS Muscle (effort) + Weight (Load) act on the same side of the fulcrum - Weight (Load) nearer the fulcrum 10 of 11 THIRD CLASS LEVERS Muscle (effort) + Weight (Load) act on the same side of the fulcrum - Muscle (Effort) nearer to the fulcrum 11 of 11
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