A cook holds a 2.90 kg carton of milk at arm's length (Fig. P8.9). What force FB must be exerted by the bicep

A cook holds a 2.90 kg carton of milk at arm's length (Fig. P8.9). What force FB must be exerted by the biceps muscle? (Ignore the weight of the forearm.)





Image: http://www.webassign.net/sf/p8_09.gif








_______ N

A cook holds a 2.90 kg carton of milk at arm's length (Fig. P8.9). What force FB must be exerted by the bicep
2.9*9.81*(25+8)=Fb*cos75*8





453.4 N





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larry