AIIMS 2000 Physics Effects of Gravitty MCQ Question
A man waves his arms while walking. This is
to keep constant velocity
to ease the tension
to increase the velocity
to balance the effect of earth’s gravity.
Correct Answer
Detailed Explanation
When a man waves his arms while walking, he is essentially trying to maintain his balance. This action helps counteract the effects of gravity and stabilizes his body as he moves. The correct answer is D because the motion of the arms aids in maintaining equilibrium, especially when the body is in motion.
Option A, 'to keep constant velocity', is incorrect because waving arms does not directly relate to maintaining a constant velocity; it is more about balance.
Option B, 'to ease the tension', is misleading as tension is not a primary concern in this context.
Option C, 'to increase the velocity', is also incorrect because waving arms does not inherently increase velocity; it is more about balance than speed.
In summary, the action of waving arms is primarily to balance the effects of gravity, making option D the correct choice.
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