8. A 73 kg bungee jumper experiences 3.2 seconds of free fall before beginning to slow at the end of the cord. the impact process begins. It takes 1.15 seconds to slow and then reverse direction. a. Calculate speed the bungee jumper gains prior to beginning to slow. b. Calculate the impact force on the person during the 1.3 seconds of slowing. 9. A 5~foot Olympic gymnast does a layout (a straight body) rotation (spin) and then they do a front tuck (pull legs into body) rotation (spin). If the gymnast decreases their radius to 1/4th of their height, by what factor will the rotation speed increase. Assume the same force is applied for each rotation. 10. Two astronauts decide to play a game of catch in space, using a third astronaut as the \"ball\". All three astronauts have the same mass. State how many times each of the two astronauts get to throw the \"astronaut ball\" before the game is over? Explain why 11. If we lived on planet Druidia that had the same mass as Earth but only 1/3lrd of Earth's radius, consider the changes. a. Would the gravitational force between you and planet Druidia be different than the force between you and planet Earth? (Yes or No) b. Would your weight be different on planet Druidia? (Yes or No) c. If an object fell into a hole that placed the object at 1/5th the radius of the Earth, calculate the change in gravitational force the object would experience. 12. Earth and the Moon are attracted to each other by gravitational force. The Earth has a stronger gravitational pull. (True or False) 13. Calculate the force of gravity between two 1,750 kg cars separated by 5 meters on the freeway. Use a ratio to calculate a comparison of the force between the two cars and the weight of one car