1.

A body move along the Circumference of acircular track redius R. The displacement ofthe body when it covers 3/4th of itscircumference is

Answer»

Circumference of the circle with radius 'R'=2πR

∴Displacement when it covers (3/4)th of its circumference=(3/4)×(2πR)=(3/2)πR

displacement it covers(3/4)t.v. of its circumference= (3/4)×(2piR)=3/2piR

circumference OF circle = 2πR3/4 of circumference= 2πR×3/4= 3/2πR is the displacement π= 22/7 or 3.14



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