Two crewmen pull a raft through a lock, as shown in the figure. One crewman pulls with a force of 130 N at an angle of 34 ° 45° 34° 130 N relative to the forward direction of the raft. The second crewman, on the opposite side of the lock, pulls at an angle of 45° Part A With what force should the second crewman pull so that the net force of the two crewmen is in the forward direction? Express your answer using two significant figures
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- A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30 north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?While sliding a couch across a floor, Andrea and Jennifer exert forces FA and FJ on the couch. Andrea’s force is due north with a magnitude of 130.0 N and Jennifer’s force is 32 east of north with a magnitude of 180.0 N. (a) Find the net force in component form. (b) Find the magnitude and direction of the net force. (c) If Andrea and Jennifer’s housemates, David and Stephanie, disagree with the move and want to prevent its relocation, with what combined forceFDS should they push so that the couch does not move?Two teenagers are pulling on ropes attached to a tree. The angle between the ropes is 30 . David pulls with a force of 400.0 N and Stephanie pulls with a force of 300.0 N. (a) Find the component form of the net force. (b) Find the magnitude of the resultant (net) force on the tree and the angle it makes with David’s rope.
- Using two ropes, Marian and Michael pull owen in a sleigh.They act at 30° to each other. Marion pulls with a 200 N force and the resultant force is 420N. With what force is Micheal pulling the sleighTwo horses pull horizontally on ropes attached to a stump. The two forces F1 and F2 that they apply to the stump are such that the net (resultant) force R has a magnitude equal to that F1 of and makes an angle of 90o with Let F1= 1300N and R= 1300 N also. Find the magnitude of F2 and its direction (relative to F1).The resultant of four coplanar, concurrent forces is 600 lb, directed S 40oE. Three of the forces are 500 lb, directed NW,; 400 lb, directed E; and 300 lb directed S. What is the x-component of the fourth force? What is the y-component of the fourth force? What are the magnitude and direction of the fourth force?
- In a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force FA of magnitude 215 N, and Charles pulls with force Fc of if Charles pulls in (a) the magnitude 180 N. Note that the direction of Fc is not given. What is the magnitude of Betty's force direction drawn in the picture or (b) the other possible direction for equilibrium? 135° Alex Charles (b) Number Betty (a) Number i Units UnitsIn a two-dimensional tug-of-war, Alex, Betty, and Charles pull horizontally on an automobile tire at the angles shown in the picture. The tire remains stationary in spite of the three pulls. Alex pulls with force FAof magnitude 203 N, and Charles pulls with force F cof magnitude 188 N. Note that the direction of F c is not given. What is the magnitude of Betty's force F 3 if Charles pulls in (a) the direction drawn in the picture or (b) the other possible direction for equilibrium? Alex Charles 136° BettyTwo forces pull on a body that rests on a smooth horizontal surface: One is 30 N 50o S of E and the other is 40 N 45o S of W. Determine the resultant of the two forces using the triangle method.
- Two forces act concurrently on an object. Their resultant force has the largest magnitudewhen the angle between the forces is1. 0°2. 30°3. 90°4. 180°Suppose 15 children who weigh the same are playing a game of tug-of-war. Five children pull with 5 newtons of force, while ten children pull with 10 newtons of force in the opposite direction. How can one determine the net force on the rope? b с Od The newtons are in the same direction, so the newtons can be multiplied. The forces are in opposite directions, so the newtons can be divided. The forces are in the same direction, so the newtons can be added. The forces are in opposite directions, so the newtons can be subtracted.Two tug boats pull a barge directly against the current of the river. The tow ropes from the tugs are at an angle of 37° to each other; the forces exerted by the tugs along the ropes ate both 4200 N. If the current produces a force of 45 N, what is the force with which the barge is pulled forward?