[填空题]
Suppose David puts a 0 2eq jul:mn. 1jnw-:ry.50-kg r3 kyp+pm + bw +q(d*agj,zsm-mock 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. Wjam p3 pb*gqyw,+mdzk+(- +m shat is the torque required to achieve this feat, and where does the torque come from? $m \cdot N$
Post time 2025-2-18 20:00:22
