Question: Solve Problem 6.133 when (a) Î± = 60°, (b) Î± = 90°. PROBLEM 6.133 The Whitworth mechanism shown is used to produce a quick-return motion

Solve Problem 6.133 when (a) Î± = 60°, (b) Î± = 90°.
PROBLEM 6.133 The Whitworth mechanism shown is used to produce a quick-return motion of Point D. The block at B is pinned to the crank AB and is free to slide in a slot cut in member CD. Determine the couple M that must be applied to the crank AB to hold the mechanism in equilibrium when (a) Î± = 0, (b) Î± = 30°.

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