a. 220 N c. 199.39 N 110 N d. 92.98 N An angler is reeling in a fish with a 60 N force. The line makes a 38 angle with the surface of the water. What portion of the force is being used to bring the fish to the surface? (five marks) a. 60 N C. 30 N b. 47.28 N d. 36.94 N MCV4U Lesson Assignment Page 2 5. A tow truck is pulling a car out of the mud. The tension in the cable is 12 000 N at an angle of 30 to the horizontal. What portion of the force is being used to lift the car vertically? (five marks) a. 6 000 N c. 12 000 N b. 10 392.30 N d. 9 000 N 6. A block weighing 100 N is at rest on a ramp inclined at 25. What is the frictional force keeping the block at rest? (five marks) a. 93.97 N C. 100 N b. 42.26 N d. 50 N 7. A child is sitting on a sticky slide unable to slide. The slide is at an angle of 50 to the horizontal and the child weighs 500 N. What is the frictional force keeping the child at rest? (five marks) a. 383.02 N C. 250 N b. 321.39 N d. 400.21 NMCV4U Vectors Lesson Assignment 5 In this assignment you are going to focus on: horizontal and vertical components of vectors Total Marks: 90 marks Instructions: After completing the lesson action section of your home page, you are ready to complete your lesson assignment. Follow these steps. a) In the textbox given, explain the strategy that you used to determine your answer. b) Fill in your answer. The mark for each question is given at the introduction to the questions to be completed. c) When finished answering all your questions, save your file and upload the file into the appropriate dropbox. Part A (Putting the Concepts to Work): Completion ( 90 marks): Using your reading, answer the following questions: For each question you are asked to: a) identify the information given in the question using a diagram b) determine the appropriate formula. c) substitute the values given into the formula and find the solution. d) give the final answer. e) as part of your answer, give the page number in the reference material or the website that you used to find the answer to the question. Multiple Choice Identify the choice that best completes the statement or answers the question. 1. The angle that the handle of a lawnmower makes with the ground is 55. You exert a force along the handle of 50 N. How much of the force is being used to push the lawnmower forward? (five marks) a. 25 N C. 50 N b. 28.68 N d. 17.1 N MCV4U Lesson Assignment Page 1 2. The rope that pulls a sleigh makes an angle of 40 with the ground. A father pulls a child in the sleigh with a force of 75 N. How much of the force is being used to pull the child forward? (five marks) a. 57.43 N c. 37.5 N b. 75 N d. 48.21 N 3. A sailor on a wharf is hauling on a line pulling in a ship. The rope makes an angle of 25 with the horizontal and the force the sailor is using is 220 N. What amount of the force is being used to move the ship horizontally? (five marks)8. A skier, weighing 700 N, is standing at the top of a hill, motionless. The slope of the hill is 0.1. Determine the frictional force that is keeping the skier motionless.(five marks) a. 696.53 N C. 69.65 N b. 350 N d. 70 N 9. A person who weighs 800 N is watching a parade from the top of a hill with an incline of 20. What is the frictional force keeping the person at rest? (five marks) a. 751.75 N C. 400 N b. 780 N d. 273.62 N 10. A 400 N piece of luggage is sitting on a loading ramp which is at a 25 angle to the horizontal. What is the frictional force that is keeping the luggage at rest? (five marks) a. 200 N C. 169.05 N b. 300 N d. 362.52 N MCV4U Lesson Assignment Page 4 11. A 250 N backpack is sitting on a loading ramp which is at a 15 angle to the horizontal. What is the frictional force that is keeping the backpack at rest? (five marks) a. 64.70 N C. 226.58 N b. 125 N d. 250 N 12. A 1000 N crate is sitting on a loading dock which is at a 30 angle to the horizontal. What is the frictional force that is keeping the crate at rest? (five marks)a. 866.03 N 666 N b. 500 N d. 750 N 13. A 2 N toy is sitting on a 120 incline. What is the frictional force that is keeping the toy at rest? (five marks) a. 2N C. 0.42 N b. IN d. 1.96 N MCV4U Lesson Assignment Page 5 14. A 300 N mountain goat is standing on a mountainside inclined at 70. What is the frictional force that is keeping the mountain goat at rest? (five marks) a. 281.91 N C. 150 N b. 102.61 N d. 200 N 15. A 0.01 N ant is standing on the back of a couch inclined at 75 to the horizontal. What is the frictional force that is keeping the ant on the couch?(five marks) a. 0.01 N C. 0.0097 N b. 0.0026 N d. 0.005 N 16. A rocket is fired at an angle of 25 to the ground and with an initial velocity of 120 m/s. Resolve the vector into its vertical and horizontal components and state the magnitudes of each component. (five marks17. A 1000 N crate rests on a 15 incline. Resolve the force of the crate into components that are parallel and perpendicular to the incline. State the magnitudes of the components.(five marks) 18. A mother holds a baby's stroller stationary on a hill with a 20 incline. The stroller and baby weigh 200 N. Resolve the force into components that are parallel and perpendicular to the hill and state the magnitudes of the components. (five marks)