Free Body Diagram Problems: 1. a) Problem 1: Standing on One Leg Scenario: A person is standing on their left leg. Components: Stick figure with CM point, body weight force vector downward from CM, and reaction force vector upward from the supporting leg. Task: Determine how the person will move horizontally, vertically, and rotate. B. Lifting a Weight Scenario: A person is lifting a heavy weight with both hands. Components: Stick figure with CM point, body weight force vector downward from CM, and reaction force vector upward from the ground. Task: Determine how the person will move horizontally, vertically, and rotate. c Jumping Off a Box Scenario: A person is jumping off a box and landing on the ground. Components: Stick figure with CM point, body weight force vector downward from CM, and reaction force vector upward from the ground during takeoff and downward upon landing. Task: Determine how the person will move horizontally, vertically, and rotate during takeoff and landing.

2. Linear Impulse Problem: Scenario: A person of mass m and weight W performs a standing long jump. Components: Body weight (W), mass (m), horizontal impulse (Ih), total vertical impulse (Iv), net vertical impulse (Nv), change in horizontal velocity (Vh), and change in vertical velocity (Vv). Question: Solve for Ih, Iv, Nv, Vh, and Vv. Plot: Make a plot of vertical RF and horizontal RF versus time for the problem. 3. Hip NJM Calculation Problem: Scenario: A person is performing a Deadlif exercise. Components: Thigh free body diagram with knee NJFs and knee NJM, thigh weight, relevant perpendicular distances, hip NJFs, and hip NJM. Solve for hip NJFs and hip NJM. Determine if the knee NJM is a flexor or extensor and what that suggests for muscle activation. Determine if the hip NJM is a flexor or extensor and what that suggests for muscle activation. Explain how to decrease the magnitude of the hip NJM.

*make sure t o draw out a diagram to explain your answer*