[填空题]
A diver (such as the one shown in Fig.,h -mz0 (jitmg 8–29) can reduce .xdwzg /y-+wh her moment of inertia by a factor of about 3.5 when changing from the straight position to the tuck position. If she makes 2.0 rotations in 1.5 s when in the tuck.xz-w/hy w dg+ position, what is her angular speed ($rev/s$) when in the straight position? $rev/s$