A 1.0 kg collar that slides along a vertical rod. Its vertical motion is control

Question

A 1.0 kg collar that slides along a vertical rod. Its vertical motion is controlled by a pin B constrained to move in the slot of arm AB (Figure 2) which rotates at a constant. Angular velocity of w = 5 rad/sec. Neglect friction between all contacting surfaces. When q = 30 degrees determine the force acting on the pin at B and the force acting on the collar due to the vertical rod.

A 1.0 kg collar that slides along a vertical rod. Its vertical motion is controlled by a pin B constrained to move in the slot of arm AB (Figure 2) which rotates at a constant. Angular velocity of w = 5 rad/sec. Neglect friction between all contacting surfaces. When q = 30 degrees determine the force acting on the pin at B and the force acting on the collar due to the vertical rod.

Explanation / Answer

net force on pin b = mg cos30=1*9.8*0.866=8.4868N

FORCE ON COLLAR =mg=9.8N

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