AP Physics C 2017
A box of mass m is placed on a plane inclined at a 30° angle above the horizontal. The coefficient of f ...
stored is given as follows. Similarly, the work done by a spring is given by W (^) spring = ½kx 2 . ...
Whether you walk up a mountain or whether a car drives you up the mountain, the same amount of work has to ...
Figure 14.2 Potential energy vs. displacement graph for a spring. You can get a general feel for how ...
A block of weight mg = 100 N slides a distance of 5.0 m down a 30-degree incline, as shown abov ...
(C) The mass speeds up with constant acceleration. (D) The mass oscillates, never getting farther than 5 cm ...
Solutions to Practice Problems 1 . E— The force of gravity is straight down and equal to 100 N. The dis ...
When this U is graphed against displacement, the motion of an object can be predicted by imagining “Chris on ...
(^1) Note that 10 N/kg is exactly the same as 10 m/s (^2) . (^2) Note this difference carefully. Althou ...
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CHAPTER 14 Energy 1 . A 2 kg mass experiences a potential energy that varies with x as sh ...
(B) 1,000 J (C) 5,000 J (D) 13,000 J (E) 22,500 J 3 . A block ...
(C) (D) (E) Answers 1 . A — . This can be written in differential form as , which shows that the ...
4 . D —The net work done on the car is the integration (area) of the F-x graph. The graph with the most are ...
CHAPTER 15 Gravitation and Circular Motion IN THIS CHAPTER Summary: When an object moves in a circle, it is a ...
relates to, well, swinging a bucket over your head. However, as you’re probably aware, the two topics ha ...
we know that the acceleration of an object in circular motion points toward the center of the circle. So ...
Let’s begin by drawing a free-body diagram of the block at the top of the circle and another of the block at ...
Car on a Curve This next problem is a bit easier than the last one, but it’s still good practice. ...
Note that this coefficient doesn’t depend on mass. Good—if it did, we’d need tires made of differen ...
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