A small bar A resting on a smooth horizontal plane is attached by threads to...
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A small bar A resting on a smooth horizontal plane is attached by threads to a point P and by means of a weightless pulley to a weight B possessing the same mass as the bar itself The bar is also attached to a point O by means of a light non deformed spring of length l 50 cm and stiffness k 5 mg l where m is the mass of the bar The thread PA having been burned the bar starts moving to the right Find its velocity at the moment when it is breaking off the plane
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To solve this problem we need to analyze the forces acting on the bar A and apply the principles of energy conservation Heres a stepbystep breakdown Given Data Length of the spring l0 50 textcm 05 textm Stiffness of the spring k frac5mgl0 Mass of the bar m same as the mass of weight B Step 1 Understanding the System 1 Initial Setup The bar A is at rest on a smooth horizontal plane and is connected to a weight B via a pulley When the
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