[填空题]
Suppose David puts a 0.50-kg rock into a adqwf4api j v8+t3gqiws09(j 8xe+h 4 sling part/n(;;qf.* +kpil5 xk xi er6w-htof 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 eh *if. p/6a-q xi+lpn5t(kkrx;r ;wt, and where does the torque come from? $m \cdot N$
Post time 2025-2-18 20:00:22
