Question

In winters, rubbing of hands together for some time, causes a sensation of warmth mainly because of A heat caused by the force of friction B heat caused by the momentum C heat caused by the motion D heat flows from the blood to skin

Answer 1

Answer:

A

Explanation:

A is the correct answer

Answer 2

Answer:

A. Heat caused by the force of friction

Explanation:

If you rub your hands together for several seconds, you'll notice that your hands feel warm. That warmth is caused by a force called friction. When objects like your hands come in contact and move against each other, they produce friction. Friction happens when you overcome the resistance of one object rubbing against the other. The force of the friction is opposes the direction of the motion. If you just put your hands together, there's no resistance, so there's no friction produced. Rub them together and there's friction.

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