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For your final design project, you use a keyway to hold your gear on the shaft. The radius of the shaft (r) is 3/16 inch and the torque transmitted is 1.48 lbf in. Keep in mind the Force on the key is Torque/radius. If your key is 0.0625 inches long (L, distance into page in left image), what must the width (w) be so that the acrylic key with yield strength of 5000 psi does not yield under the
conditions above?