need help in this

When a person stands on tiptoe (a strenuous position), the position of the foot is as shown in Figure a. The total gravitational force on the body, F , is supported by the force n exerted by the floor on the toes of one foot. A mechanical model of the situation is shown In Figure b, 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, R, and 0 when F. = n - 590 N. (For 0, enter the smaller of the two possible values between 0% and 909.) Achilles Tibia tendon R 15.09 IFTELL 1 1 18.0 em 25.0 cm R= 9 2 2