3. A constant force of 20.0 N is applied to an object of mass 8.00 kg at an angle of 25.0° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.00 m along the horizontal direction?

3. A constant force of 20.0 N is applied to an object of mass 8.00 kg at an angle of 25.0° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.00 m along the horizontal direction?

Name: 3. A constant force of 20.0 N is applied to an object of mass 8.00 kg
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: 3. A constant force of 20.0 N is applied to an object of mass 8.00 kg at an angle of 25.0° with the horizontal.What is the work done by this force on the object if it causes a displacement of 2.00 m along the horizontaldirection?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

19. A 15.0 kg block is dragged over a rough, horizontal surface by a 80N force acting at 25° above the horizontal. The block is displaced 6.0 m, and the coefficient of kinetic friction is 0.140. (a)Find the work done on the block by the 80 N force. (b) Find the work done on the block by the normal force. (c) Find the work done on the block by the gravitational force. (d) What is the increase in internal energy of the block-surface system due to friction? (e) Find the total change in the block's kinetic energy. -Ax mg
6.65 CP A 20.0-kg crate sits at rest at the bottom of a 15.0-m-long ramp that is inclined at 34.0° above the horizontal. A constant horizontal force of 290 N is applied to the crate to push it up the ramp. While the crate is moving, the ramp exerts a constant frictional force on it that has magnitude 65.0 N. (a) What is the total work done on the crate during its motion from the bottom to the top of the ramp? (b) How much time does it take the crate to travel to the top of the ramp?
4. A force of F= 20 N at an angle of 37° is applied to a 3-kg object initially at rest. The object has displaced a distance of 25 m over a frictionless horizontal table. Determine the work done by the applied force.
1. A 2kg object is hanging from a rope that makes an angle of 30 degrees with the horizontal. The object is pulled by a force of 10N at an angle of 60 degrees with the horizontal. Using the laws of motion and vector analysis, determine the acceleration of the object, the tension in the rope, and the work done by the force during a displacement of 2m.
4 A cable exerts a constant upward tension of magnitude 1.38 x 10" N on a 1.20 x 10 kg elevator as it rises through a vertical distance of 3.50 m. HINT (a) Find the work done by the tension force on the elevator (in J). (b) Find the work done by the force of gravity on the elevator (in J).
5. A person pulls an object of mass 40 kg as far as 20 m above a flat floor at a constant speed. The force used is directed 370 upwards horizontally. The coefficient of kinetic friction of the object with the floor is 0.20. Determine the work by the person, the work by the frictional force, and the total work on the object.
1. A tractor is hitched to a sled loaded with firewood as shown. The total weight of the sled and load is 14700 N. The tractor exerts a constant force F, with magnitude 5000N at an angle of o = 36.9° above the horizontal. A constant 3500-N friction force opposes the motion. To drag the sled a distance of 20.0 m, a total of 10.0 kJ of work must be done on the sled. a. Draw the free body diagram of forces acting on the sled. b. What is the mass of the loaded sled? c. Suppose the sled's initial speed, vo, is 2.00 m/s. What is its final speed, vr,? 14 700N 34.9 a) Freo bady dlagram Fp-3500N 36-40 =14700N mg mg. M= 1470N 9.80mis m=1.5x10 ng 2. You throw a 10.0 N rock into the air from ground level and observe that, when it is 14.0 m high, it is traveling upward at 25.0 m/s.
7. A 40 kg box initially at rest is pushed 5.0m along a rough horizontal floor with a constant applied horizontal force of 130N. If the coefficient of friction between the box and floor is 0.30, find (a) the work done by the applied force, (b) the energy lost due to friction, (c) the change in kinetic energy of the box, and (d) the final speed of the box.
An object of mass 5 kg is pulled by a constant force of 6.2 N at an angle of 350 above the horizontal through a distance of 7 m. What is the work done on the object? Neglect friction. An object of mass 5 kg is pulled by a constant force of 6.2 N at an angle of 350 above the horizontal through a distance of 7 m. What is the work done on the object? Neglect friction. 55 J 46 J 43 J 36 J
A child pulls a sled (mass 8.00 kg ) over a distance of 20.0 m [West] by applying a force of 30.0 N [40.0° above the horizontal]. There is a frictional force of 14.0 N acting backward on the sled. The total work done on the sled is: up west east Applied force down Friction motion 740. J 180. J 674 J O 1437 J 245 J
A 3.54 kg object has three forces that act on it as it moves 5.35 m in the negative x-direction, starting from rest. The three forces that act on the object are described in the table below: Force Force 19.91 N Force 2 34.7 N Force 3 49.5 N |magnitude direction |along the positive x-axis |along the negative y-axis |44.5 degrees above the -x-axis a. Determine the work done by each of the forces. i. Work done by Force 1 ii. Work done by Force 2 iii. Work done by Force 3 J J J b. What is the net work acting on the object? J c. Using work and kinetic energy ideas (Unit 7), what is the speed of the object after it has moved 5.35 m? m/s
103.