Question 4 (4 points) In an international skiing competition, each skier's velocity is determined at the mid- way point of the track which is 136 m above the base of the course. Based on the overall height of the course, and energy losses due to turning, skiers have an average mechanical energy of 1.3 x 103J at the mid-point of the race. If a skier's velocity is measured to be 38 m/s at the mid-way point, what might be the skier's mass? Your Answer: Answer units Add attachments to support your work Question 5 (4 points) One of the largest vultures in the world, the bearded vulture is known for dropping particularly large bones onto hard rock in order to break them to get to the marrow inside. A bone dropped by a bearded vulture hits the ground at 24.0 m/s. How fast was the bone falling when it was 7.4 m above the rocks? Note: Use g = 9.81 m/s' if the two givens in this problem each contain three significant digits. Your Answer: Answer units Add attachments to support your work Question 6 (4 points) A 41 kg child is jumping on a trampoline with a spring constant of 4800 N/m. On a particular jump, the trampoline extends 0.77 m below its rest level. What height above the rest position of the trampoline will the child reach from this jump? Your