A force F= (4i-3ĵ) N acts on a particle that undergoes a displacement A = (2i +j) m. a) ) Find the work done by the force on the particle. 1. b) s) What is the angle between F and Ar?
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- The last word of the sentence in the picture is "particle" a. Find the work done by the force using a dot product. b. Find the angle between the force and displacement.72. The graph shows how the force component F cos 0 along the dis- placement varies with the magnitude s of the displacement. Find the work done by the force. (Hint: Recall how the area of a triangle is related to the triangle's base and height.) F cos e 62.0 N 1.60 mIn the attached image, the mass is 3.20 kg, and theta=37 degrees. The surface does have friction, with static coefficient=0.45 and kinetic coefficient=0.39.If a person takes hold of the rope and, pulling at this angle with a force of T=23 N, drags the box 3.8 meters... a. How much work is done on the box by person pulling? b. How much work is done on the box by the force of friction? c. What is the net work done on the box?
- 63. An object moving in the xy-plane is subjected to the force CALC F = (2xyî + x²ĵ) N, where x and y are in m. a. The particle moves from the origin to the point with coordinates (a, b) by moving first along the x-axis to (a, 0), then parallel to the y-axis. How much work does the force do? b. The particle moves from the origin to the point with coordinates (a, b) by moving first along the y-axis to (0, b), then parallel to the x-axis. How much work does the force do? c. Is this a conservative force? IIneed d,e,f,g,hIn the table below, the directions of the constant force F and the displacement Δr are shown. Write in the sign of the work done by the force (positive "+" or negative "-") or "0" if the work done by the force is zero. Write a brief explanation of why each is correct.
- Find the dot product of the vectors 21+ 3 + 3k and i + 5j + k. Stuck? Use a hint. Report a problem ProjectiA 5 kg block is pushed 3 meters along a frictionless horizontal table by a constant 20 N (20 Newtons) force directed 60 degrees above the horizontal. The work done by the applied force is: A.)Work done by the applied force = 100 J B.)Work done by the applied force = 300 J C.)Work done by the applied force = 30 J D.)Work done by the applied force = 60 JThe force on a particle is directed along an x axis and given by F = Fo(x/xo - 1) where x is in meters and F is in Newtons. If Fo = 1.2 N and Xo = 2.7 m, find the work done by the force in moving the particle from x =0 to x = 2xo m. Number i Units
- A) When the force is parallel to the displacement B) When the force magnitude is maximum C) When the displacement magnitude is the maximum D) When the force is perpendicular to the displacement505For the three cases shown below, assuming the displacement is 4.0 m to the right. Match the answers with questions. 10 N 8 N 6 N 60° the work done by the 10-N force + the work done by the 8-N force + the work done by the 6-N force A. OJ В. 32J С. 16] D. 40J Е. 24]