physics - rotational dynamics
2013-05-08 12:27 pm
In the simplest analysis, translational, or linear, work is F s, where F is the force and s a distance moved. Using s = r(theta), where s is now taken to be a distance around a circle, or arclength, transform W = F s into a rotational analog that doesn't involve the symbols F or s, but rather symbols we generally take to be "rotational" quantities.
回答 (1)
2013-05-08 3:49 pm
✔ 最佳答案
Work done W = F.s = F.[r(theta)] = T.(theta)where T = F.r is the torque.
Hence, work done W = torque x angular displacement
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https://hk.answers.yahoo.com/question/index?qid=20130508000051KK00027