Example 2.1
A ballerina stands on her tiote,the position of the foot is as shown below.The Total Weight of her body 500N is supported by the force n exerted by the floor on the toe. A free-body-diagram is shown in Figure,where T is the force exerted by the achilles tendon on the foot and r is the force exerted by the tibia on the foot find the values of T and R take θ =20°