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Physics · LAWS OF MOTION

हिन्दी

Refer to the given figure showing a book resting on a horizontal table. The weight of the book is \( W \) downward and the normal force exerted by the table is \( R \) upward. What is the net force acting on the book?

Question diagram
  1. A
    \( W + R \)
  2. B
    Zero
  3. C
    \( W - R \)
  4. D
    \( W \times R \)
View Answer & Solution

Correct answer · Option B

Zero

Explanation

Since the book is observed to be at rest, its acceleration is zero, which implies by the first law that the net external force acting on it is zero (\( R = W \)).
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