The rotation of the rod OA around O is defined by the relation θ = (3/π)(sen πt), where θ and t are expressed in radians and seconds, respectively. Collar B slides along the rod so that its distance from O is r = 6(1- e-2t ) ,where r and t are expressed in inches and seconds, respectively. When t = 1s determine,a) the velocity of the collar b) the acceleration of the collar, c) the acceleration of the collar relative to the rod

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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.