Physics September-26-08

Physics September-26-08 - -Show only the forces acting on...

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Physics September-26-08 Weight: the magnitude of the upward force needed to balance the force of gravity on an object. Normal Force: the vector force of the table pushing upward on the object Steps to solving a problem involving elevator forces: 1. Make a free body diagram - Indicate all forces on the passenger
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Unformatted text preview: -Show only the forces acting on the passenger-Indicate the coordinate system 2. Apply Newtons second law in an inertial frame-Is the elevator an inertial frame? o No its accelerating-How about an outside observer? o Yes an earth frame of reference works as it is not accelerating...
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