Multiple choice general knowledge science & technology

A body is at rest on a horizontal ground. No external force is applied. The force acting on the body is/are _____.

  1. friction

  2. normal reaction

  3. weight

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When a body rests on a horizontal surface without external forces, two forces act on it: its weight (downward) and the normal reaction force (upward) from the surface. Since the question specifically asks about forces from the ground/surface, 'normal reaction' (B) is the correct answer. Friction only acts when there's motion or tendency to move.

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