A cook holds a 2.59-kg carton of milk at arm's length (see the figure below). What force vector F B

Physics
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A cook holds a 2.59-kg carton of milk at arm's length (see the figure below). What force vector F B must be exerted by the biceps muscle? (Ignore the weight of the forearm. State the magnitude of the force vector F B.) N

Jun 11th, 2015

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Jun 11th, 2015


Jun 11th, 2015

2.59 x 9.81 x (25+8)=FB x Cos( 75°) x 8 

solving we get Fb = 838.46/2.07        = 404.95 N 

Jun 11th, 2015

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