help ASAP with 4 questions!! my teacher gave feedback on last attempt so added in:)) **someneed freebody diagrams btw

Assignment 7 Unit B Module 1, Lesson 4: Free-Body Diagrams and Net Force Lesson 1 ofthis assignment is worth 9 marks. The value of each question is noted in the left margin in parentheses. Remember: all net force problems should include a freebody diagram. 1. Beta convinces Alpha to drag their ice-fishing shack to a new location by pulling it with ropes. Alpha applies a force of 150 N [175\"] on one rope and Beta applies a force of 175 N [190\"] on another rope. What is the net force applied to the shack by Alpha and Beta? Assume the ice is frictionless. Show all work. 2. The next day, Alpha decides to move the shack back to its original location. Alpha (having had a nutritious breakfast) is able to pull the 1800 kg shack at a constant velocity with a force of 190 N. Calculate the coefficient of friction between the shack and the ice. Show all work. Unit B Module 1, Lesson 5: Solving Net Force Problems Lesson 2 ofthis assignment is worth 33 marks. The value of each question is noted in the left margin in parentheses. Remember: all net force problems should include a free-body diagram. 3. A textbook with a mass of2.18 kg is pulled across a table with a horizontal force of 5.5 N [E]. If the table has a coefficient of friction of 0.15, what is the acceleration of the textbook? Beta convinces Alpha to drag their ice-fishing shack to a new location by pulling it with ropes. Alpha applies a force of 150 N [175 ] on one rope and Beta applies a force of 175 N [190 ] on another rope. What is the net force applied to the shack by Alpha and Beta? Assume the ice is frictionless. Show all work. (6) Alpha force : 2/6 sin ( 175 " ) = app your= sin (175") XISON app : - 11. 5 N ( negative because it's in the opposite direction to positive * -Gais ) X X cos ( 1750 ) = ads / hyp Start by drawing your free body diagram adj = cos ( 175' ) , 150N and resolving vector diagram. adj = - 138 . 7N ( negative as its app . to positve younis ) ) Alpha : horizontal - 71.5 & - 135. 7N Bela I see you have tried to find resolving vectors here but your calculations are sin ( 190 0 ) = app / hyp incorrect. You are also missing the fina " PP = sin ( 190- ) * 175 1 steps . See Lesson 4, P6, SC7 "Free-Body app = - 104- 3 N & Diagrams in 2D" 2 of 8 X cos ( 190 ) = adj/ nyp adj = cos (190-) * 17SN Physics 20: Mrs. Tyler Assignment 7 adj = 170- 9 N X 2. The next day, Alpha decides to move the shack back to its original location. Alpha (having had a nutritious breakfast) is able to pull the 1800 kg shack at a constant Bels horizont + verbal velocity with a force of 190 N. Calculate the coefficient of friction between the is -loy. 3N @ ADLC AIR 2.5 shack and the ice. Show all work. and 170. 9 N (3) normal force = 180kg x 9.8 1m /s' applied fore : 190 mass = 1800 kg = 17, 658 N gravity = 9.81 m / s 2 coercvent of Frichon = 190N / 17,658N = 0.0108 Please show free body diagram and direction for full marks. See Lesson 4, P5 "Free-Body Diagrams and Net Force" After you have completed all questions in Lesson 4, please place your assignment in a safe place until you have finished Lesson 5. Unit B Module 1, Lesson 5: Solving Net Force Problems Lesson 2 of this assignment is worth 33 marks. The value of each question is noted in the left margin in parentheses. Remember: all net force problems should include a free-body diagram. 3. A textbook with a mass of 2.18 kg is pulled across a table with a horizontal force of 5.5 N [E]. If the table has a coefficient of friction of 0.15, what is the acceleration of the textbook? (2) mass = 2. 18kg applies force = 5.5 N ( 6 ] 1.5/2 coefficient of Frichon = 0.15 normal face: 2.18kg 9.81 m/s - 21. 37N force of fret = 0. 15+ 21.37N = 3. 2IN For full marks you need to show direction, as well as a 5. SN[E] - 321 0 FBD and indicate direction in your answer. = 2. 29 N CEJ a= 2. 2AN CC] / 2.18kg a = 1.0504 57 (LC All Rights Reserved (2019) Gz 1, 10/s 2c) In the image above, use a ruler/straight edge to draw: iv. A dotted arrow to represent the position of the normal v. A dashed arrow to represent the incident ray vi. A solid arrow to represent the reflected ray d) Using a protractor, determine the angles of incidence and reectio . i .r 3 .-' P ; f l .i In the images below. the reiiet'teti wave is darker {in the foreground] and the ineitlent wave is lighter (in the hnekgrnu mi}. The reecting,r surface is the bottom of the image. Remember: the ray is perpendleular to the wave. ova in 77 c] In the image above, use a ruler/straight edge to draw: 13 iv. A dotted arrow to represent the position of the normal v. A dashed arrow to represent the incident ray 7( vi. A solid arrow to represent the reflected ray )( d] Using a protractor. determine the angles of incidence and reection. See Lesson 2. P3 \"Law of Reflection\