[填空题]
A potter is shaping a bowl on a p9dulq;qz 5snvh6 q7h4nzp-: motter’s wheel rotating at constant i mu4;68go 43 ny.x9peae iohzangular speed (Fig. 8–42). The friction force between her hands and 9 36eumyanx;goe4phz i4 io.8the clay is 1.5 N total. (a) How large is her torque on the wheel, if the diameter of the bowl is 12 cm? $m \cdot N$ (b) How long would it take for the potter’s wheel to stop if the only torque acting on it is due to the potter’s hand? The initial angular velocity of the wheel is 1.6 rev/s, and the moment of inertia of the wheel and the bowl is 0.11 $kg \cdot m^2$. s
Post time 2025-2-18 20:00:22
