Torque

  • Torque (moment) results from a force that causes an object to turn about an axis, fulcrum or pivot.
  • Torque is given by:

τ = rF

Where r = distance from the pivot point, and F = force applied perpendicular to the lever arm

  • Torque is a vector, measured in Nm (newton metres)
  • The direction is either clockwise or anticlockwise
Force at an angle
  • If the force is applied at an angle, the perpendicular force = sinθ
  • M = rFsinθ

 

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