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Often times, success in physics demands that you have the proper approach - a good game plan. When determining which types of forces act upon an object in a given situation, proceed through the list of forces and ask: Is this force present on the object?
Answering this question demands that you understand each type of force. If necessary, use the link in the Hot Link below to navigate to a web page that describes each force on the list of force types.
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A physics question often contains a short phrase that might seem a bit peculiar. It is the type of phrase that might cause one to wonder why it is included within the question. In actuality, the phrase serves to provide a hint or clue that might steer you in the right direction. In this question, the clue is in the phrase "There is no contact with the walls of the elevator shaft." Including this phrase in the question warns the student that there is no normal force exerted upon the elevator by the walls of the elevator shaft. Thus, normal force is not included in the answer.
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