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zxing qr code reader java Fx 250 Fy F 125 N in ObjectiveC
Fx 250 Fy F 125 N Reading QR Code In ObjectiveC Using Barcode Control SDK for iPhone Control to generate, create, read, scan barcode image in iPhone applications. Drawing QR Code 2d Barcode In ObjectiveC Using Barcode generator for iPhone Control to generate, create QR Code 2d barcode image in iPhone applications. Figure 103 If a force is applied to a car at an angle, the net force doing the work is the component that acts in the direction of the displacement Recognizing QR Code JIS X 0510 In ObjectiveC Using Barcode scanner for iPhone Control to read, scan read, scan image in iPhone applications. Generate Bar Code In ObjectiveC Using Barcode encoder for iPhone Control to generate, create barcode image in iPhone applications. Section 101 Energy and Work
QR Drawer In Visual C# Using Barcode printer for VS .NET Control to generate, create QR image in .NET applications. Generating Denso QR Bar Code In .NET Using Barcode encoder for ASP.NET Control to generate, create QR Code 2d barcode image in ASP.NET applications. Hutchings Photography
QR Code 2d Barcode Creation In .NET Framework Using Barcode creation for .NET Control to generate, create QR Code 2d barcode image in Visual Studio .NET applications. QR Code Creator In VB.NET Using Barcode drawer for .NET Control to generate, create QR image in Visual Studio .NET applications. The work you do when you exert a force on an object, at an angle to the direction of motion, is equal to the component of the force in the direction of the displacement, multiplied by the distance moved The magnitude of the component force acting in the direction of displacement is found by multiplying the magnitude of force, F, by the cosine of the angle between F and the direction of the displacement: Fx F cos Thus, the work done is represented by the following equation Work (Angle Between Force and Displacement) W Fd cos EAN / UCC  13 Maker In ObjectiveC Using Barcode creation for iPhone Control to generate, create EAN / UCC  13 image in iPhone applications. Drawing Barcode In ObjectiveC Using Barcode encoder for iPhone Control to generate, create bar code image in iPhone applications. Work is equal to the product of force and displacement, times the cosine of the angle between the force and the direction of the displacement EAN13 Printer In ObjectiveC Using Barcode generator for iPhone Control to generate, create EAN13 Supplement 5 image in iPhone applications. Drawing Code 128B In ObjectiveC Using Barcode creation for iPhone Control to generate, create Code 128A image in iPhone applications. Other agents exert forces on the pushed car as well Which of these agents do work Earth s gravity acts downward, the ground exerts a normal force upward, and friction exerts a horizontal force opposite the direction of motion The upward and downward forces are perpendicular to the direction of motion and do no work For these forces, 90 , which makes cos 0, and thus, W 0 The work done by friction acts in the direction opposite that of motion at an angle of 180 Because cos 180 1, the work done by friction is negative Negative work done by a force exerted by something in the external world reduces the kinetic energy of the system If the person in Figure 103a were to stop pushing, the car would quickly stop moving its energy of motion would be reduced Positive work done by a force increases the energy, while negative work decreases it Use the problemsolving strategies below when you solve problems related to work Print EAN / UCC  8 In ObjectiveC Using Barcode drawer for iPhone Control to generate, create EAN8 image in iPhone applications. Painting EAN13 In None Using Barcode creator for Online Control to generate, create EAN13 image in Online applications. Work
Paint Data Matrix ECC200 In .NET Using Barcode creation for Reporting Service Control to generate, create Data Matrix 2d barcode image in Reporting Service applications. Bar Code Scanner In Visual C# Using Barcode recognizer for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications. When solving workrelated problems, use the following strategies 1 Sketch the system and show the force that is doing the work 2 Draw the force and displacement vectors of the system 3 Find the angle, , between each force and displacement 4 Calculate the work done by each force using W Fd cos 5 Calculate the net work done Check the sign of the work using the direction of energy transfer If the energy of the system has increased, the work done by that force is positive If the energy has decreased, then the work done by that force is negative Print Code 39 Extended In None Using Barcode maker for Online Control to generate, create Code39 image in Online applications. Making UPCA In VS .NET Using Barcode maker for ASP.NET Control to generate, create UPC Symbol image in ASP.NET applications. Work Diagram
Read Barcode In Java Using Barcode Control SDK for BIRT reports Control to generate, create, read, scan barcode image in Eclipse BIRT applications. Making Code 128A In Java Using Barcode creation for Java Control to generate, create Code 128 Code Set C image in Java applications. d FN FA Fg
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10 Energy, Work, and Simple Machines
Work and Energy A 105g hockey puck is sliding across the ice A player exerts a constant 450N force over a distance of 0150 m How much work does the player do on the puck What is the change in the puck s energy Analyze and Sketch the Problem
Sketch the situation showing initial conditions Establish a coordinate system with x to the right Draw a vector diagram Known: m F d 105 g 450 N 0150 m
x F d
Unknown: W KE
Solve for the Unknown
Use the equation for work when a constant force is exerted in the same direction as the object s displacement Math Handbook W Fd Operations with (450 N)(0150 m) Substitute F 450 N, d 0150 m Significant Digits 0675 N m pages 835 836 0675 J 1J 1Nm Use the workenergy theorem to determine the change in energy of the system W KE KE 0675 J Substitute W 0675 J Evaluate the Answer
Are the units correct Work is measured in joules Does the sign make sense The player (external world) does work on the puck (the system) So the sign of work should be positive 1 Refer to Example Problem 1 to solve the following problem a If the hockey player exerted twice as much force, 900 N, on the puck, how would the puck s change in kinetic energy be affected b If the player exerted a 900 Nforce, but the stick was in contact with the puck for only half the distance, 0075 m, what would be the change in kinetic energy 2 Together, two students exert a force of 825 N in pushing a car a distance of 35 m a How much work do the students do on the car b If the force was doubled, how much work would they do pushing the car the same distance 3 A rock climber wears a 75kg backpack while scaling a cliff After 300 min, the climber is 82 m above the starting point a How much work does the climber do on the backpack b If the climber weighs 645 N, how much work does she do lifting herself and the backpack c What is the average power developed by the climber

