The 1.8-kg uniform bar rotates in the vertical plane about the pin at O. When the bar is in the position shown, its angular velocity is 4 rad/s, clockwise. For this position, find (a) the angular acceleration of the bar; and (b) the magnitude of the pin reaction at O.

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A:

Q: The uniform rod AB of weight W is released from rest when β = 70°. Assuming that the friction force…

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Q: The spring-mounted 0.97-kg collar A oscillates along the horizontal rod, which is rotating at the…

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Q: |A F Assume that / Aanvaar dat: G 1 (ag)x = la cos 0 (ac)y = la sin 0 ४

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Q: The mass of the A gear is 10 kg and the turning radius is 200 mm. Of gear B its mass is 3kg and the…

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Q: If a disk rolls without slipping, compute for the acceleration a of its COG. Assume the fixed…

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Q: he right-angle bar with equal legs weighs /7.1 lb and is freely hinged to the vertical plate at C.…

A: Solution- Given data- m = 7.1 lb

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A: According to the information we have the narrow end rollers of the narrow 8-lb bar (length = 4 ft)…

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Q: At the instant shown, link CD rotates with an angular velocity of CD= 8 rad/s. If link CD is…

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Q: The uniform 101 lb beam is initially at rest when the forces FA vertical and FB, that forms an angle…

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Q: 2. When a hydraulically-operated digger is removing earth, as shown below, the horizontal force on…

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Q: (20 pts) A concrete block is lifted by a hoisting mechanism in which the cables are securely wrapped…

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Q: The spring is uncompressed when the uniform slender bar is in the vertical position shown. Determine…

A: FREE BODY DIAGRAM OF SHOWN IN DIAGRAM

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Q: The slender L-shaped bar ABCD mass 15 kg/m is free to rotate about the pin at B. The spring…

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Q: 0.6 m A B 14m

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A:

Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.