Question

You already know that friction generates heat. This heat s the temperature of a machine, sometimes causing damage to its parts. Hence, proper arrangements have la made to keep the machine cool. For example, insulation of windings of machines (Fig. 10.8) like mixer hair dryers, etc. may get spoiled due to friction and the motor may burn.ato reduce fluid friction are the important function given special shape called the streamline shape friction has both advantage and disadvantage There are number of methods by which friction can be increased or reduced Like solid fluid ( liquid and gases ) also exert force of friction on all moving through them the frictional force ​

Answer 1

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Answer 2

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thx dear ...

nice to meet u have a great day...