Conceptual Physics
Free-body diagram of forces on box 5.15 - Interactive problem: free-body diagram In this section, you practice drawing a free-bo ...
section, we discuss some general properties of friction. The amount of friction depends on the materials in contact. For example ...
proportionally. fs,max = μsFN fs,max = maximum static friction μs = coefficient of static friction FN = normal force Coefficient ...
What is the maximum static friction force? The coefficient of static friction for these materials is 0.31. fs,max = μsFN fs,max ...
fk = μkFN fk = force of kinetic friction μk = coefficient of kinetic friction FN = normal force Coefficients of kinetic friction ...
5.19 - Interactive checkpoint: moving the couch While rearranging your living room, you push your couch across the floor at a co ...
Physics principles and equations Newton’s second law ȈF = ma The magnitude of the force of kinetic friction is found by fk =μkFN ...
Variables What is the strategy? Draw a free-body diagram. Use trigonometry to calculate the net force on the ball along each ax ...
5.22 - Interactive problem: forces on a sliding block Above, you see an illustration of a block that is being pulled up a ramp b ...
Hooke's law Fs = íkx Fs = spring force k = spring constant x = displacement of end from rest point What is the force exerted by ...
upward drag force equals the downward force of gravity. When this occurs, there is no net force and the object ceases to acceler ...
Drag coefficients Based on approximations of shape The drag coefficient C is 0.49 and the air density ȡ is 1.1 kg/m^3. What is t ...
above the horizontal from the ball. Set the individual vectors and press GO to hit the center of each target in turn. The target ...
5.27 - Summary Force, and Newton's laws which describe force, are fundamental concepts in the study of physics. Force can be des ...
Chapter 5 Problems Conceptual Problems C.1 Can an object move if there is no net force on it? Explain. Yes No C.2 Suppose you ap ...
(a) i. F ii. -F iii. 0 iv. -F/2 v. F/2 (b) i. F ii. -F iii. 0 iv. -F/2 v. F/2 (c) i. F ii. -F iii. 0 iv. -F/2 v. F/2 C.13From th ...
4.4 A dog on Earth weighs 136 N. The same dog weighs 154 N on Neptune. What is the acceleration due to gravity on Neptune? m/s^2 ...
5.12 A chain of roller coaster cars moving horizontally comes to an abrupt stop and the passengers are accelerated by their safe ...
force of the table on the block? N Section 12 - Tension 12.1 An ice rescue team pulls a stranded hiker off a frozen lake by thro ...
Section 17 - Static friction 17.1 A piece of steel is held firmly in the jaws of a vise. A force larger than 3350 N will cause t ...
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