Motion of the sliding block P in the rotating radial slot is controlled by the power screw as shown. For the instant represented, θ˙ = 0.1 rad/s, θ¨ = −0.04 rad /s2, and r = 300 mm. Also, the screw turns at a constant speed giving r˙ = 40 mm/s. For this instant, determine the magnitudes of the velocity v and acceleration a of P. Sketch v and a if θ = 120°.

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P Problem 2/134