explain in detail why friction is called a necessary evil
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Friction is ofcourse a necessary evil as most of the cases it is observed that friction does really plays a crucial role though it opposes the relative motion.
Example: 1)The worlds tallest Burj Khalifa has Friction as one of its cause of being a self supporting structure as the rods used in its base are placed close enough to produce frictional force supporting normal reaction.
Hope it helps...:-)
Friction is ofcourse a necessary evil as most of the cases it is observed that friction does really plays a crucial role though it opposes the relative motion.
Example: 1)The worlds tallest Burj Khalifa has Friction as one of its cause of being a self supporting structure as the rods used in its base are placed close enough to produce frictional force supporting normal reaction.
Hope it helps...:-)
Mehak004:
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