A 0 5 kg block B slides without friction inside a slot cut in arm OA which rotates in a vertical plane The motion of the rod is defined by the relation 10 rad s2 , constant At the instant when 45 , r 0 8 m and the velocity of the block is zero Determine, at this instant, (a) The force exerted on the block by the arm, (b) The relative acceleration of the block with respect to the arm B A

Question: A 0.5-kg block B slides without friction inside a slot cut in arm OA which rotates in a vertical plane. The motion of the rod

A 0.5-kg block B slides without friction inside a slot cut in arm OA which rotates in a vertical plane. The motion of the rod is defined by the relation θ = 10 rad/s2 , constant. At the instant when θ = 45?, r = 0.8 m and the velocity of the block is zero. Determine, at this instant,

(a) The force exerted on the block by the arm,

(b) The relative acceleration of the block with respect to the arm.

B A

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