AP Physics C 2017
Step 3 : Equations. Let’s start with the x -direction. And from vector analysis we know that so, Simila ...
Well, maybe for some people. Getting the actual correct answer does depend on your algebra skills. But, and ...
Remember, when solving for Ff , do not assume that FN equals the weight of the object in question. Here’s a ...
of P act down. Notice that when we set up the equilibrium equation in the vertical direction, FN - (mg + ...
Plugging this expression for FN into the rewritten equation for the horizontal forces, and then replacing the ...
Figure 10.5b Forces acting on the block in Figure 10.4 , with the weight vector resolved into com ...
Figure 10.6 The torque applied to this bar equals Fd . The unit of torque is the newton-meter. Here’s ...
Step 2 : Vector components. We don’t have to worry about vector components here. (We would have if ...
Lever Arm The “lever arm” for a force is the closest distance from the fulcrum to the line of that force ...
2 . A 6000-kg bus sits on a 30° incline. A crane attempts to lift the bus off of the plane. The crane ...
1 . Call the tension in the angled rope T 2 . In the y-direction, we have T (^) 2, (^) y = T 2 ...
The box is in equilibrium, so Ff must equal mg (sin θ ), and FN must equal mg (cos θ ). μ ·FN = μ ·mg ( ...
(^1) When physicists say “normal,” they mean “perpendicular.” The word “normal” in its conventional mean ...
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CHAPTER 10 Free Body Diagrams and Equilibrium 1 . A car is parked on a hill. Which of the fol ...
(E) Questions 2 and 3 refer to the following information: A student pulls a 20 kg dolly to the right at ...
4 . An eight-spoke wheel with a radius of R is free to rotate on a horizontal axis with ...
80 cos 60° = μFN 4 . D —The center mass does not produce a torque since it is hung directly below ...
CHAPTER 11 Kinematics IN THIS CHAPTER Summary: As soon as an object’s velocity changes, you need to analyz ...
Velocity, Acceleration, and Displacement We’ll start with a few definitions. In this definition, Δx means “d ...
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