College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Two children pull on a sled in opposite directions, each pulling with a force of 58 N. What is the approximate net force acting on the sled?
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- A traffic light weighing 90.3 newtons is hung from two cables as shown in the attached figure. Determine the magnitude of the tension force applied by the weight of the traffic light on each of the cables. Write the answer in newtons using three significant figures.arrow_forwardTwo people are pulling a heavy 95 kg box across the floor as shown in the figure. Person A is pulling in the x-direction only with a force of 20 N. Person B is pulling at an angle e = 40° above the x-direction, also with a force of 20 N. What is the total pulling force on the box in the x-direction?arrow_forwardA 100. N force is applied to a 21.2 kg crate to slide it along a rough horizontal surface. The diagram shows the forces acted on the crate in this situation. What was the magnitude of the normal force acting on the crate? (a) 208 N (b) 258 N (c) 121 N (d) 69.6 N (e) 158 Narrow_forward
- Two ropes apply a force to a boat. The first is 200 N in the positive x direction, and the second is 250 N in the positive y direction. At what angle must a third rope tension be applied in order to keep the boat at rest? Your Answer:arrow_forwardTwo children pull a third child on a toboggan. Assuming that they pull on ropes that are parallel to the ground determine the magnitude of the force exerted on the toboggan.arrow_forwardA man pulls a cement block with a force of 450N using a rope that makes an angle of 35.0 degrees above the horizontal. What is the x-component of his pulling force?arrow_forward
- Three cables are used to tie the balloon shown in Figure. Determine the magnitude of the vertical force (P) exerted by the balloon at A, knowing that the tension in cable AD is 1.099 N. y1 = 4.3 m y2 = 2.2 m x1 = 4.4 m x2 = 3.1 m z = 5.8 marrow_forwardAs shown in the figure, a woman is straining to lift a large crate, but without success because it is too heavy. We denote the forces on the crate as follows: P is the magnitude of the upward force being exerted on the crate by the person, C is the magnitude of the vertical contact force on the crate by the floor, and W is the weight of the crate. How are the magnitudes of these forces related while the person is trying unsuccessfully to lift the crate? OA P=C OB.P+C>W OCP+Carrow_forwardA certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 28.0 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.arrow_forwardThe figure below shows a bird feeder that weighs 189.7 N. The feeder is supported by a vertical string, which is in turn tied to two strings, each of which is attached to a horizontal branch. The left string makes a 60° angle with the branch, while the right string makes a 30° angle. What is the tension in each string (in N)? left string right string bottom string 60° Bird food 30° N Narrow_forwardTwo people play tug of war. The 100-kg person on the left pulls with 1100 N, and the 75-kg person on the right pulls with 870 N. Assume that neither person releases their grip on the rope with either hand at any time, assume that the rope is always taut, and assume that the rope does not stretch. What is the magnitude of the tension in the rope in Newtons? Add your answerarrow_forwardTwo muscles in the back of the leg pull upward on the Achilles tendon. Find the magnitude and direction of the total force on the Achilles tendon. What movement is caused by this force? F₂(200 N) F, (200 N) 20% 20%arrow_forwardarrow_back_iosarrow_forward_ios
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