14. Torque & Rotational Dynamics
Torque & Acceleration (Rotational Dynamics)
6:05 minutes
Problem 10.85
Textbook Question
Textbook QuestionSuppose David puts a 0.60-kg rock into a sling of length 1.5 m and begins whirling the rock in a nearly horizontal circle, accelerating it from rest to a rate of 75 rpm after 4.5 s. What is the torque required to achieve this feat, and where does the torque come from?
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