Analogies

We've looked at several analogies between straight-line motion and rotational motion, including:

VariableStraight-line motionRotational motionConnection
Displacement x θ θ = x/r
Velocity v ω ω = v/r
Acceleration a α α = a/r
Produces motion F τ τ = r × F
Inertia m I I = r2 dm
Second Law ΣF = ma Στ = I α
Work

W = F d

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Kinetic Energy K = ½ mv2 ??