Explain the need for modulation.

1.	Explain the need for modulation.
Answer» Solution :In a leveled circularroadskiddingmainlydependson thecoefficientof staticfricition`mu_(s)` thecoefficientof staticfrictiondependson thenatureof thesurfacethat has amaximumlimitingvalue .Ifthe SPEEDOF carexceedsthe safespeedthen it startsto skidoutward.Butfrictionalforcecomesintoeffect. Ifthe SPEED OFTHE CAR is littlelesserthan safespeedthenis startsto skidinwardandfrictionalforce comesintoeffectthatreducescentripetalforceto preventinwardskidding. However ifthespeedof tehvehiclefrictionalforcecannotstopthe carfromskidding.

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