Current Attempt in Progress The wheel in the gure has eight equally spaced spokes and a radius of 24 cm. It is mounted on a xed axle and is spinning at 4.4 rev/s. You want to shoot a 28-cm-long arrow parallel to this axle and through the wheel without hitting any of the spokes. Assume that the arrow and the spokes are very thin. What minimum speed must the arrow have? A V Number a Units A merry-go-round rotates from rest with an angular acceleration of 1.07 rad/s2. How long does it take to rotate through (a) the first 2.73 rev and (b) the next 2.73 rev? (a) Number Units (b) Number i Units