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Mechanics
Torque
τ
=
r
F
sin
θ
Torque causes angular acceleration. τ = r × F.
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Variables
τ
Torque
Rotational force
N·m
r
Lever arm
Distance from pivot
m
F
Force
Applied force
N
θ
Angle
Angle between r and F
°
Derivation
Cross product magnitude: |τ| = rF sin θ.
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