Question 1 (1 point) A person is lifting a crate that exerts 120 N vertically downwards on each hand. Your sign convention has the positive y-axis pointing vertically upwards. Starting with this 120 N force, you draw free body diagrams of one hand, one forearm, one arm, and the trunk. You find that the vertical force at the shoulder acting on the arm is 190 N upwards. What is the total vertical force at the shoulder acting on the trunk? 190 N downwards 190 N upwards 95 N downwards 95 N upwards 380 N downwards 380 N upwards