[填空题]
A potter is shaping a bowl on a potter’s wheel rotating at constv igiia;y(t ik1c( 0m7x6pb9qu t,o.xant angular speeptb qg6u.1x0oy xv ,a9c;(i(iit im7 kn-8+ -n/pp sxfmb6f ad: onae:4jxc(jd (Fig. 8–42). The friction force between her hands and the clay is 1axpjosac 6xb-mnp-f84/n(f+ :j den: .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
