Introduction to SAT II Physics
Adding these two equations together, we find that. Solving for a, we get: Because , the acceleration is negative, which, as we d ...
factor affect us? Let’s follow three familiar steps: Ask yourself how the system will move: If the force of gravity is strong e ...
force of friction:. Using Newton’s Second Law, we can determine the net force acting on the box, and then solve for a: Because , ...
There are just a few examples of the widespread phenomenon of oscillation. Oscillation is the natural world’s way of returning a ...
m, placed on a frictionless surface, and attached to a wall by a spring. In its equilibrium position, where no forces act upon i ...
proportional, a graph of F vs. x is a line with slope –k. Simple Harmonic Oscillation A mass oscillating on a spring is one exam ...
Frequency is given in units of cycles per second, or hertz (Hz). Potential Energy The potential energy of a spring ( ) is someti ...
In this figure, v represents velocity, F represents force, KE represents kinetic energy, and represents potential energy. Vertic ...
of the spring due to the gravitational pull exerted on the mass. The equilibrium position is the point where the net force actin ...
compressed. Consequently, the net force downward is greatest at and the net force upward is greatest at. Energy The mechanical e ...
The oscillation of a pendulum is much like that of a mass on a spring. However, there are significant differences, and many a st ...
You’ll notice that the restoring force for the pendulum, mg sin , is not directly proportional to the displacement of the pendul ...
Velocity Calculating the velocity of the pendulum bob at the equilibrium position requires that we arrange our coordinate system ...
Don’t let a big equation frighten you. Just register what it conveys: the longer the string and the greater the angle, the faste ...
Practice Questions .Two masses, m and M, are connected to a pulley system attached to a table, as in the diagram above. What is ...
.A 1 kg mass on a frictionless inclined plane is connected by a pulley to a hanging 0.5 kg mass, as in the diagram above. At wh ...
.An object of mass 3 kg is attached to a spring of spring constant 50 N/m. How far is the equilibrium position of this spring s ...
of the table is also mg. That means that the force of static friction resisting the pull of the rope must also equal mg. The for ...
Since the system is in equilibrium, the force of tension in the rope must be equal and opposite to the force of gravity acting o ...
The equilibrium position is the position where the net force acting on the object is zero. That would be the point where the dow ...
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