1.

A is a fixed point on the circumference of a circle with centre 'O' and radius 'r', A particle starts at A and moves on the circumference with an 4 radian/sec. If PM is perpendicualar to OA and algle POM = pi//3, then the rate at which of DeltaPOM decreases is

Answer»

`(R^(2))/(2)` sq.cms/sec
`r` cms/sec
`(3R^(2))/(2)` sq.cms/sec
`2R^(2)` sq.cms/sec

Answer :B


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