Science, asked by adeebkhan94, 1 year ago

write a brief note on friction(friction a necessary evil)

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Answered by RAAJSRIWASTAV3
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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.

[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.

[2] Working of a ball point pen:- The ball roles on the surface having friction so that we can write acco to our own wish.Its not possible on frictionless surface.

[3] Frictional force produces torque which is responsible the wheels of vehicle to rotate

[4] Its static friction that helps in taking a turn on a normal/leveled road as it provides necessary centripetal force.


➡Though there is lots of loss of energy due to friction but still its important!!!
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