Can someone help out with my homework please? This question has two parts.
person ( 75kg ) walks straight ahead at a uniform speed of 2 steps (one gait cycle) per second. he above image shows the hip joint angle over the course of the gait cycle. Draw 4 separate free ody diagrams on your scratch paper of the forces acting on the person as a whole (neglecting air esistance) from a sagittal view at: A) 30% of the gait cycle. (Only the right leg is in contact with the ground, i.e., single-stance. Note that hip angle is close to zero, so you can assume the person is standing fully upright). B) the same time in the gait cycle, but while carrying a cube-shaped box (mass 20kg ) that is 20cm long and touches his abdomen. The horizontal distance between the center of his lumbar-sacral (low-back) disc to the front of his abdomen is 20cm. The center of the disc represents the axis of rotation for trunk flexion/extension. C) the same time in the gait cycle, but while holding a different cube-shaped box (mass 25kg ) that is 15cm long and also touches his abdomen. D) the same time in the gait cycle, but while holding yet a different cube-shaped box (mass 5 kg ) which is 40cm long, also touching his abdomen. 'ou will upload these free body diagrams at the end once you have submitted your exam. Please nake sure they are clearly labeled. Note: you do not need to write anything in the text box below. This is just here in case you need to vrite any contextual information down to help us clarify your hand-drawn answer). For cases B,C and D in the above question, calculate the torque (in N-m) about the center of his disc that is caused by the carried loads, assuming the boxes have uniform densities in all cases. (You can also think of these problems as how much torque his back muscles would theoretically need to generate to counter the weight of the boxes.) Write your answers for each case (B,C, and D) in the text box below. person ( 75kg ) walks straight ahead at a uniform speed of 2 steps (one gait cycle) per second. he above image shows the hip joint angle over the course of the gait cycle. Draw 4 separate free ody diagrams on your scratch paper of the forces acting on the person as a whole (neglecting air esistance) from a sagittal view at: A) 30% of the gait cycle. (Only the right leg is in contact with the ground, i.e., single-stance. Note that hip angle is close to zero, so you can assume the person is standing fully upright). B) the same time in the gait cycle, but while carrying a cube-shaped box (mass 20kg ) that is 20cm long and touches his abdomen. The horizontal distance between the center of his lumbar-sacral (low-back) disc to the front of his abdomen is 20cm. The center of the disc represents the axis of rotation for trunk flexion/extension. C) the same time in the gait cycle, but while holding a different cube-shaped box (mass 25kg ) that is 15cm long and also touches his abdomen. D) the same time in the gait cycle, but while holding yet a different cube-shaped box (mass 5 kg ) which is 40cm long, also touching his abdomen. 'ou will upload these free body diagrams at the end once you have submitted your exam. Please nake sure they are clearly labeled. Note: you do not need to write anything in the text box below. This is just here in case you need to vrite any contextual information down to help us clarify your hand-drawn answer). For cases B,C and D in the above question, calculate the torque (in N-m) about the center of his disc that is caused by the carried loads, assuming the boxes have uniform densities in all cases. (You can also think of these problems as how much torque his back muscles would theoretically need to generate to counter the weight of the boxes.) Write your answers for each case (B,C, and D) in the text box below
