PQRS is a four bar chain with link PS fixed. The length of the links are PQ = 62.5 mm, QR = 175 mm, RS = 112.5 mm and PS = 200 mm. The crank PQ Rotates at 10 rad/s clockwise. Draw the velocity and acceleration diagram when angle QPS = 60 degrees, and Q and R lie on the same side of PS. Find the angular velocity and angular acceleration of the links QR and RS.

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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.