$M = 4kg M = 45 kg, For r = 200mm, N = ?$

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$m = 4\ kg$

$M = 45 kg$

$sin \ \alpha = \frac{200}{350}$

$\alpha \ = \ 34.85°$

$sin \ \beta = \frac{160}{300}$

$\beta = 32.23°$

$h = \sqrt{ 350^2 – 200^2}$

$h = 287.228\ mm$

$q = \frac{tan \ \beta}{tan \ \alpha} = 0.91$

For $r = 200\ mm, …

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