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

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

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

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