Using the worker posture shown, determine the largest allowable crate mass to limit the L951 extensor moment to 150 Nm, Assume the torso, neck, head, and both arms combined have a mass of 45 kg, and a COM that Is 25 em from the L551 joint on a straight line connecting the L551 and shoulder joints. You will upload a photo of your work in Part 2 of Test 2. Your solution must be neat organized and complete for full credit. 53 cm 55 1 50 cm 1551 V