A variable-speed belt drive consists of the two pulleys, each of which is constructed of two cones which turn as a unit but are capable of being drawn together or separated so as to change the effective radius of the pulley. If the angular velocity ω₁ of pulley 1 is constant, determine the expression for the angular acceleration α₂ = ω˙₂ of pulley 2 in terms of the rates of change r˙₁ and r˙₂ of the effective radii.

Transcribed Image Text:

b2 b1 2 1 02 01