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प्रश्न
A book rests on a table. Which pair of forces keeps the book in mechanical equilibrium?
पर्याय
Weight and air resistance
Weight and normal force from the table
Weight and friction
Applied force and gravity
MCQ
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उत्तर
Weight and normal force from the table
Explanation:
The downward weight of the book is balanced by the upward normal force from the table. These two forces cancel, creating equilibrium.
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