The patella P located in the human knee joint is subjected to tendon forces T1 and T2 and a force F exerted on the patella by the femoral articular A. If the directions of these forces are estimated from an X-ray as shown, determine the magnitudes of T1 and F when the tendon force T2 = 6 lb.. The forces are concurrent at point O.

The patella P located in the human knee joint is subjected to tendon f

1.	The patella P located in the human knee joint is subjected to tendon forces T1 and T2 and a force F exerted on the patella by the femoral articular A. If the directions of these forces are estimated from an X-ray as shown, determine the magnitudes of T1 and F when the tendon force T2 = 6 lb.. The forces are concurrent at point O.
A.	T1 = 1.042 lb, F = 5.91 lb
B.	T1 = 5.64 lb, F = 5.64 lb
C.	T1 = 1.203 lb, F = 5.31 lb
D.	T1 = 4.45 lb, F = 6.82 lb
Answer» E.

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