6. A roofer pulls a 25.0 kg bundle of shingles up the side of a roof that has a 29.0' pitch. She applies a force to the shingles, counteracting the 18.5 N of friction, to accelerate the shingles at a rate of 0.50 m/s?. Calculate the force she applied to the shingles. (4)Physics 20: SUMMER Assignment 6 7. Use the following information to answer the following question. You may want to reference the page "Simple Pulleys" (Lesson 5 Page 8) from your course for this question. A student sets up a Fletcher's Trolley, where Block 1, on the table, has a mass of 0.450 kg and Block 2, suspended off the side of the table, has a mass of 0.766 kg. Assume the mass of the rope and friction are negligible. Calculate the acceleration of the system. Show all work starting with free- body diagrams and net force equations for each block. (4)8. Fill in the blanks with the terms "greater than", "less than", or "equal to" to outline how the normal force applied by the elevator, and therefore, your apparent weight, changes as you travel in an elevator. a) Your apparent weight is your actual weight when the elevator travels at a constant speed/coasts. (3) b) Your apparent weight is your actual weight when the elevator accelerates downward. c) Your apparent weight is your actual weight when the elevator is moving upward and slows down to stop at a floor.Physics 20: SUMMER Assignment 6 9. During a rocket launch, an astronaut experiences a "g-force" (actually an acceleration) of 3.0 gs [upward], which is equal to three times the acceleration due to gravity. If the astronaut weighs 79.4 kg, what is her apparent weight during the acceleration? (2) 10. When the astronaut enters the ISS (International Space Station), she is in "free fall," where the only force acting on her is the force of gravity applied by the Earth. What happens to her true weight and her apparent weight as she enters the ISS? Explain. (You may want to reference p. 227-228 of the textbook to help you.)Physics 20: SUMMER Assignment b 11. What is the mass of a person accelerating downward at -5.45 m/s if they are standing on a scale that reads 236 N? (2) 12. While traveling at constant speed in an airplane, a passenger's weight is 750 N. When the airplane accelerates downwards, his apparent weight is 672 N. What was the acceleration of the airplane? (2)