20. A 30 kg child sits on the right end of a see-saw 1 m from the axis. If a 20 kg child sits on the left end of the see-saw 2 m from the axis, what will happen? A. The see-saw will balance. B. The see-saw will tilt to the right. C. The see-saw will tilt to the left. D. Need more information to predict outcome.15. Which connection tissues attach muscle to the bone? A. Ligament B. Tendon C. Both A and B D. None of the above 16. A runner completes 1 full lap around a 400-meter track. What is her displacement? A. 400 meters B. 400 meters X 2nt C. Zero D. Need more information 17. When observing someone lift a heavy object, which of the following is likely to be the angle of interest regarding back injury? A. Absolute angle of the trunk. B. Relative angle of the trunk. C. Absolute angle of the knee. D. Relative angle of the knee. 18. A skater gliding on ice will continue to move in the same direction and with the same speed (in the absence of the action of additional forces). This refers to which of the following laws? A. Newton's first law of inertia. B. Newton's second law of acceleration. C. Newton's third law of action/reaction. D. Newton's law of gravitational force. 19. Where is radius of gyration located in relation to center of gravity (COG)? A. Closer to the axis. B. Further from the axis. C. Same distance from the axis. D. None of the above. 6