Pen P of the flatbed plotter traces the curve y = x3/2, where x and y are measured in mm. When x = 1000 mm, the speed of slider A is 200,mm/s. For this position, calculate (a) the speed of P; and (b) the normal component of the acceleration of P.

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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.