Question: Two identical 0.9-lb slender rods AB and BC are welded together to form an L-shaped assembly. The assembly is guided by two small wheels that

Two identical 0.9-lb slender rods AB and BC are welded together to form an L-shaped assembly. The assembly is guided by two small wheels that roll freely in inclined parallel slots cut in a vertical plate. Determine

(a) The angle of inclination θ for which the reaction at A is zero,

(b) The corresponding acceleration of the assembly.

8 in. 8 in.

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