Question

(b) Fig. 3.1 shows a diagram of an arm with the hand holding a weight of 120N.
KON
15 cm
20N
J120N
33 cm
Fig. 3.1
The 20N force is the weight of the forearm, acing at its contre of mass. F is the force in the
muscle of the uppor arm. P is the point in the olbow about which the arm pivots. The distances
of the forces from point P are shown.
(1) By taking moments about point P. calculate the force F.​

Answer 1

Answer:

I would like to help u but I don't know the answer to this

Answer 2

Answer:

Where is figure 3.1 ?

send the pic of the figure