[填空题]
Suppose David puts ao wvls z(b:,q1pnm 4/5 t w/dt*y:h)9sly6)k vjmsgfv 0.50-kg rock into a sling of length 1.5 m and begins whirling the rock in a nearly horizontal circle above his head, accelerating it from rest to a rate of 120 rpm after 5.0 s. What is the torque required to achieve this feat, and where does thegwm 4tyvy tl9*hp:kjss/)5 f /nd6v)m torque come from? $m \cdot N$
Post time 2025-2-18 20:00:22
