[填空题]
Suppose David puts a 0.50-kg rock into a sling of length 1.5 m ao. e8h51p, pgv;nkpzex5tn.pnd begins w0egmo+.gzzn 3 u/ 1awjhirling 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 where3+wamzng.0/ 1gz oe uj does the torque come from? $m \cdot N$
Post time 2025-2-18 20:00:22
