0.20 A particle travels around the curve shown, following reº m, with 0(t) = 0.5t² rad. At the moment 0 = π, determine the speed and acceleration of the particle. V = a = m/s m/s² What would the speed and acceleration of the particle be if, instead of this path, the path were circular with the same r at that instant (= π)?

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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.