In the arrangement in the figure, the reels 'a 'and 'b' are pulled at VA m/s and VB =12 m/s. since there is no friction between the block and the surfaces; a) find the velocity and acceleration of block c when roller a moves 60mm to the left and roller b moves 90mm to the right b) find the rope force acting on the cable. (a=30°)

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Q: A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolu-…

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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.