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これのTの求め方を教えてください🙇‍♀️
至急でお願いいたします

M X M M g = M g - T - M tm

Answers

✨ Best Answer ✨

M×{(Mーm)/(M+m)}g=MgーT

●両辺を(M+m)倍

M(M-m)g=Mg(M+m)-T(M+m)

●Tを含む項を左辺、他の項を右辺に移項

T(M+m)=Mg(M+m)-M(Mーm)g

●右辺をMgでくくる

T(M+m)=Mg{(M+m)ー(M-m)}

●右辺の{ }内を整理

T(M+m)=Mg{2m}

●右辺を整理し、両辺を(M+m)でわる

T={2mM/(M+m)}g

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