A circular disc of area 0.64 π m2 roll down a length of 1.408 km. The – McqOptions

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1.	A circular disc of area 0.64 π m2 roll down a length of 1.408 km. The number of revolutions it makes is: (take π = 22/7)
A.	180
B.	140
C.	360
D.	280
Answer» E.

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