The instantaneous power delivered to an object is P 4t2 W. If the object has a...

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Answer 1

Answer #1

P=4t^2, F=6N, t=3s , v=?

$P=Fv,\:\ v=P/F$

$v=\frac{4t^2}{6}=\frac{2t^2}{3}$

At t=3s Instantaneous speed is

$v=\frac{2\times 3^2}{3}=6m/s$

Answer 2

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