The three ropes shown in the bird's-eye view of the figure (Figure 1)are used to drag a crate 3.5 m across the floor. I Review I Constants You may want to review (Pages 214 - 218). Part A How much work is done by each of the three forces? Express your answers using two significant figures. Enter your answers numerically separated by commas. ? kJ W1, W2, W3 =
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- Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30° above the floor. The tension is a constant 28.0 N and the coefficient of friction is 0.210. Part A Use work and energy to find Paul's speed after being pulled 2.90 m Express your answer with the appropriate units. 1.93 Submit μA m S ? Previous Answers Request Answer X Incorrect; Try Again; 26 attempts remainingPlease answer part D of this problem, Make sure you do the right work please and provide the right answer. DO not type your work upload a picture of your work please.Two objects of different mass start from rest and are pulled horizontally with negligible friction by the same magnitude net force and moved through the same distance. The work done on object 1 is 4000 joules. After the force has pulled each object, object 1 is seen to move with half the speed of object 2. Answer the following questions and show your work. a. How much work is done on object 2? b. What is the kinetic energy of object 1 after being pulled? Explain. C. What is the kinetic energy of object 2 after being pulled? Explain. d. What is the ratio of the mass of object 1 to the mass of object 2? Explain and show work.
- Got the wrong answer, help.Part A A0.60 kg book slides on a horizontal table, The kinetic friction force on the book has magnitude 1.1 N. How much work is done on the book by friction during a displacement of 3.4 m to the left? Express your answer with the appropriate units. HẢ W = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Part B The book now slides 3.4 m to the right, returning to its starting point. During this second 3.4 m displacement, how much work is done on the book by friction? Expre your nswer with the appropria eunits. Ii HẢ W2 = Value Units Submit Request Answer Part CPlease include explanations and work for the problems. Please write it out to make it easy to understand.
- Can a dot product ever be negative? Yes No SubmitPrevious Answers Correct Part B If yes, under what conditions? One of the vectors has negative length. The angle between two vectors is greater than 90 ∘∘. The angle between two vectors is less than 90 ∘∘.Problem #1–The below figure shows a 200-kg sleigh being pulled along a ramp at constant velocity. Suppose that the ramp is at an angle of 0 = 30° with respect to the horizontal and the sleigh covers a distance d = 20 m up the incline. The snowy slope is extremely slippery generating a frictionless surface. How much work is done by each force acting on the sleigh?Two blocks are connected by a very light string passing over a massless and frictionless pulley (Figure 1). Traveling at constant speed, the 20.0 N block moves 80.0 cm to the right and the 12.0 N block moves 80.0 cm downward. Part E During this process, how much work is done on the 20.0 N block by friction? Express your answer with the appropriate units. HẢ ? Wf, 20.0 N = Value Units Figure 1 of 1 Submit Request Answer Part F 20.0 During this process, how much work is done on the 20.0 N block by the normal force? N Express your answer with the appropriate units. ? 12.0 N Wn, 20.0 N = Value Units
- Part A The two ropes seen in (Figure 1) are used to lower a 255 kg piano exactly 8 m from a second-story window to the ground. How much work is done by w? Express your answer in joules. ν ΑΣφ ? W = J Submit Request Answer Part B How much work is done by T1? Express your answer in joules. ? W = J Submit Request Answer Part C How much work is done by T2 ? Express your answer in joules. ΑΣφ ? W = J Submit Request Answer Figure 1 of 1 Provide Feedback 1830 N 1295 N 60° 45° 2500 NPlease do itPls help ASAP. Pls show all work, steps and calculations please.