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20-10-2020
Physics

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A 210 N block is at rest on a flat, frictionless surface. A cable hooked to the object applies an upward force of 70 N on the object. What is the normal force from the surface acting on the object?

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20-10-2020

Answer:

For an object resting upon a non-accelerating surface, the normal force is equal to the ... Suppose that a person weighs 800 N and sits at rest upon a table. ... applying a downward force of 200 N. With the additional downward force of 200 N acting upon the person, the total upward force must be 1000 N.

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