Solve the below problem:
Q: An athlete is exercising while wearing a 5-lb ankle weight at A as shown. Determine
(a) The moment of the weight about the knee joint at B,
(b) The magnitude of the muscular force P which creates a moment of equal magnitude about B,
(c) The smallest force F applied at C which creates the same moment about B as the weight.
![216_Moment of the weight about the knee.jpg](https://secure.tutorsglobe.com/CMSImages/216_Moment of the weight about the knee.jpg)