The flat-belt tensioner is manufactured by the Daton Co. and is used with V-belt drives on poultry and livestock fans. If the tension in the belt is F, when the pulley is not turning, determine the moment of each of these forces about the pin at A.

Given:
F = 52 lb
a = 8 in
b = 5 in
c = 6 in
θ1 = 30 deg
θ2 = 20 deg

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