You hang from a tree branch, and then let go and fall toward the Earth. As you fall, the y-component of your momentum, which was originally zero, becomes large and negative. a. Choose yourself as the system. There must be an object in the surroundings whose y-momentum must become equally large and positive. What object is this? b. Choose yourself and the Earth as the system. The y-component of your momentum is changing. Does the total momentum of the system change? Why or why not?

You hang from a tree branch, and then let go and fall toward the Earth. As you fall, the y-component of your momentum, which was originally zero, becomes large and negative. a. Choose yourself as the system. There must be an object in the surroundings whose y-momentum must become equally large and positive. What object is this? b. Choose yourself and the Earth as the system. The y-component of your momentum is changing. Does the total momentum of the system change? Why or why not?