Math Problem Statement
列:质量为m、长为l的均匀绳索索在光滑的水平面 上以匀角速度ω绕其一端0匀速旋转,在其自由端系 有一质量为M的小球,求绳中各点的张力。
Solution
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Math Problem Analysis
Mathematical Concepts
Circular Motion
Centripetal Force
Tension in a String
Formulas
dm = (m/l) dr
dF = dm ⋅ r ω^2 = (m/l) dr ⋅ r ω^2
T(r) = ∫r^l (m/l) r' ω^2 dr' + M l ω^2
T(r) = (m/2l) ω^2 (l^2 - r^2) + M l ω^2
Theorems
Newton's Second Law
Principle of Centripetal Force
Suitable Grade Level
University Physics Level
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