A yo-yo oscillates up and down like a sine function y(t)=sin(t). a) What is the displacement over the time interval [0,6π]?   b) What is the total distance traveled by the yo-yo over the same time interval?   c) What is the minimum velocity of the yo-yo? Minimum speed?   d) At what part of the cycle is the yo-yo increasing in speed but decreasing in velocity?

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