Car Comes to a Stop on Rough Patch Case 1: The engine of the car is shut off. 4 of 7 > Review Learning Goal: Work by Non conservative forces, the Work-KE Theorem The car must come to a stop within a distance of d = 46.69 m on the rough patch. You will find how much kinetic friction is needed. Vo rough Case 1 weight FN F Part A - What is the TOTAL work done by all the forces? Note: the total work can be calculated even though not all the forces are given. If you are not sure how, open the "hints". Round to an integer. Unit is Joules. View Available Hint(s) Case 2 weight ? A car moving to the LEFTat an initital speed of v = 24.2 m/s encounters a ROUGH horizontal patch. The coefficient of kinetic friction is unknown. The car' mass is m = 1000.0 kg, The magnitude of the gravitational acceleration is 9.80 m/s. Total Work 457562 Submit Previous Answers Incorrect; Try Again; 2 attempts remaining J Car Comes to a Stop on Rough Patch < 4 of 7 Review Learning Goal: Work by Non conservative forces, the Work-KE Theorem Part B - Calculate the work done by the normal force, and the work done by gravity. Review on how to apply the work formula and identify the angle "0" correctly. Open "hints" if you need. rough Case 1 weight F Case 2 weight Round to an integer. Unit is Joules. Separate answers by commas. View Available Hint(s) Work by normal force; by gravity = c. ? A car moving to the LEFTat an initital speed of v = 24.2 m/s encounters a ROUGH horizontal patch. The coefficient of kinetic friction is unknown. The car' mass is m = 1000.0 kg, The magnitude of the gravitational acceleration is 9.80 m/s. Submit Previous Answers Part C Case 1: What is the work done by the Kinetic frictional force? Note: this work can be calculated even though the magnitude of the kinetic frictional force is not given. Round to an integer. Unit is Joules. www ? Work by kinetic frictional force Submit Previous Answers Request Answer Incorrect; Try Again; 5 attempts remaining J Car Comes to a Stop on Rough Patch Learning Goal: Work by Non conservative forces, the Work-KE Theorem Vo rough Case 1 weight F F Case 2 weight 4 of 7 Review Part D - What is the magnitude of the Kinetic frictional force? The magnitude of the leftward displacement is d = 46.69 m on the rough patch. Round to an integer. Unit is Newtons. fk Submit Previous Answers Request Answer ? N A car moving to the LEFTat an initital speed of v = 24.2 m/s encounters a ROUGH horizontal patch. The coefficient of kinetic friction is unknown. The car' mass is m = 1000.0 kg, The magnitude of the gravitational acceleration is 9.80 m/s Incorrect; Try Again; 5 attempts remaining Part E-What is the coefficient of the Kinetic friction between the car and the rough patch? Keep 2 digits after the decimal point. No Unit. 0.64 Submit Previous Answers Correct Car Comes to a Stop on Rough Patch Learning Goal: Work by Non conservative forces, the Work-KE Theorem rough Case 1 weight F F Case 2 weight A car moving to the LEFTat an initital speed of v = 24.2 m/s encounters a ROUGH horizontal patch. The coefficient of kinetic friction is unknown. The car' mass is m = 1000.0 kg, The magnitude of the gravitational acceleration is 9.80 m/s. Case 2: the car's engine is NOT shut off. 4 of 7 Review The magnitude of the kinetic friction is the same as in Part D. The magnitude of the engine force (to the LEFT) is F = 2000.0 N. The magnitude of the leftward displacement is d = 46.69 m, the same as in Case 1. Part F - Case 2: Calculate the work done by the engine force F. The magnitude of the leftward displacement is d = 46.69 m. Round to an integer. Unit is Joules. ? Work by force F = Submit Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining J Part G - Case 2: Calculate the TOTAL work done by all the forces (including the engine force F.) The magnitude of the leftward displacement is d = 46.69 m. Round to an integer. Unit is Joules.. ? Case 2: with engine force Total Work by all forces = J