推 j0958322080 :1.F對於角度的變化率 2.什麼時候變化率=0 10/23 22:18
An object with mass m is dragged along a horizontal plane by
a force acting along a rope attached to the object. If the rope
makes an angle θ with the plane, then the magnitude of the force
is
μmg
F=-------------
μsinθ+cosθ
where μ is a constant called the coefficient of friction.
(a) Find the rate of change of F with respect to θ
(b) When is this rate of change equal to 0
順便問一下 respect在數學上的意思
有人能幫忙嗎?!
謝謝
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※ 編輯: eri820503 來自: 140.127.200.17 (10/23 22:10)