Question $12(7$ points$)$

An automatic dryer spins wet clothes at an angular speed of $5\mathrm{.}40ra\frac{d}{s}.$ Starting from rest, the dryer reaches its operating speed with an average angular acceleration of $3\mathrm{.}70ra\frac{d}{s^2}.$ How long does it take the dryer to come up to speed?

Show your answer to two decimal places: for example, $3\mathrm{.}45.$

Your Answer:

Answer

units