85.5 applications of Newton's law The results are N Mmg cos 8 M+msin 8 mgcos0sine MM+msin20 e(M+m)sino M+msin'6 85.5 applications of Newtons law N Mmg cos mg cossing,(M+m)g sing M+msin'6 MM+msin20 M+msin 8 6=0 6=x/2 M m m0 0 M 0 g gsin 8 N mg 0 mg cos 8 1717 ( ) θ θ θ θ θ θ θ 2 2 2 sin sin sin cos sin sin cos M m M m g a M m mg a M m Mmg N M + + ′ = + = + = The results are y x m a M r a ′ r am r N r W r §5.5 applications of Newton’s law ( ) θ θ θ θ θ θ θ 2 2 2 sin sin ; sin cos sin ; sin cos M m M m g a M m mg a M m Mmg N M + + ′ = + = + = θ = 0 θ = π 2 M → ∞ N a a M ′ mg 0 0 0 0 g θ θ cos sin 0 mg g m M m M m M §5.5 applications of Newton’s law