कोई मनुष्य भूसे के एक गट्ठर को अपने सिर पर 30 मिनट तक रखे रहता है और थक जाता है क्या उसने कुछ कार्य किया या नहीं अपने उत्तर को तर्कसंगत बनाइए
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Work is done whenever the given two conditions are satisfied:
→ A force acts on the body.
→ There is a displacement of the body by the application of force in or opposite to the direction of force.
When a person holds a bundle of hay over his head, then there is no displacement in the bundle of hay. Although, force of gravity is acting on the bundle, the person is not applying any force on it. Hence, in the absence of force, work done by the person on the bundle is zero.
→ A force acts on the body.
→ There is a displacement of the body by the application of force in or opposite to the direction of force.
When a person holds a bundle of hay over his head, then there is no displacement in the bundle of hay. Although, force of gravity is acting on the bundle, the person is not applying any force on it. Hence, in the absence of force, work done by the person on the bundle is zero.
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