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The Blade of a Reciprocating Saw Has a Displacement (In m\mathrm{m}

Question 41

Short Answer

The blade of a reciprocating saw has a displacement (in m\mathrm{m} ) of y=2.5sin⁡8πt−1.5cos⁡4πty=2.5 \sin 8 \pi t-1.5 \cos 4 \pi t . Find the velocity of the blade at 2.0 s.

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