College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- A 75.0 Kg person stands on a scale that reads 500. Newtons. The person is pulling on a rope that is suspended from overhead. What is the tension in the rope?
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- A boy has filled his toy box with all his favorite toys and it trying to drag it across the floor. The toy box has a mass of 35 kg (including the toys) and the child pulls with a force of 24 N at an angle of 30 degrees above horizontal (he is pulling mostly horizontally, but some of the force is pulling up). How will the normal force between the box and the ground change when the boy starts pulling?arrow_forward8. A student was given the following problem: "The drawing shows a person (weight push-ups. Find the normal force exerted by the floor on each hand and each foot, as person holds this position." A. To find the answer, the student drew this Free Body Diagram. F, is the force on the hands, F, is the force on the feet and F, is the weight of the man. What is wrong with this diagram? B. After the student fixed the Free Body Diagram, they decided to solve the problem by putting the pivot point at the center ofarrow_forwardA small child is trying to push a 100 kg box across a rough surface He is applying a force of 100 N parallel to the ground. The box, however, does not budge. The coefficient of static friction between the box and the ground is 0.8. What is the magnitude of the static friction force?arrow_forward
- A child pulls a 20 kg sled with a rope that makes an angle of 30° with the ground. The tension in the rope is 60 N. The coefficient of friction between the sled and the snow is 0.1. What is the acceleration of the sled?arrow_forwardThere is a worker that slides a heavy box up a ramp into a truck. The box has a mass of 70 kg. The ramp is 4.7 m long and makes an angle of 27 degrees with the horizontal. The coefficient of friction between the ramp and box is 0.4 1.What's the weight of the box? 2.What's the normal force acting on box? 3.What's the force of friction acting on box?arrow_forwardA mass is suspended from the ceiling in an elevator by a heavy rope. The mass is 80 kg and the mass of the rope is 2 kg. If the breaking strength of the rope is 1000 N, what is the maximum acceleration of the elevator such that the rope will not break?arrow_forward
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