QB: 1) Figure A shows Free-body diagram of the right leg for someone standing on one leg, showing the forces and relevant dimensions. Find the magnitude of the muscle force M and the joint reaction force R? (3 points) -mass of the person is mp-100 Kg -N is the ground reaction force. -Wing is the weight of the leg. -g-10 m/s2 2) When the same person in (1) holds a cane with his left arm, the right leg position changed as shown in the figure B below. Recalculate M and R? (the cane hold 25 of the boy weight(Wb)) (3 points) 3) Name Four antagonist muscles to the muscle M? (2 points)? 0 Willows 0.05 70% 70° M 70° 0.05 cm R 6.98 cm- 4.70 cm -7.0 cm 17.8 cm 10.2 cm Figure A 6.65 cm W c.g Figure B 11.7 cm-16.1 cm 17.8 cm