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Statement I: Frictional heat generated b...

Statement I: Frictional heat generated by the moving ski is the chief factor which promotes sliding in skiing while waxing the ski makes skiing more easy.
Statement II: Due to friction, energy dissipates in the form of heat. As a result, it melts the snow below it. Wax is water repellent.

A

Statement I is true, statement II is true, Statement II is the correct explanation for statement I.

B

Statemet I is true, Statement II is true , Statement II is NOT the correct explanation for Statement I

C

Statement I is True, Statement II is False.

D

Statement I is False, Statement II is true

Text Solution

Verified by Experts

The correct Answer is:
A
Once the ski is in motion, it melts the snow below it and hence skiing can be performed. To make skiing easier, wax has been put on bottom surface of ski as wax is water repellent and hence reduces the friction between the ski and film of water.
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