[填空题]
Suppose David puts a 0)bt2gqexr9 8w ;ya0or. m 6i5rl3sxa*q50-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 s3qxlrs*5 6ami. What 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
