SOLUTION: N is a fixed point on the circumference of a circle, centre O, radius 12cm. A variable point moves round the circumference with a constant speed of 4cm/s. The angle PON is denot

Question 1048413: N is a fixed point on the circumference of a circle, centre O, radius 12cm.
A variable point moves round the circumference with a constant speed of 4cm/s. The angle PON is denoted by θ.
Find
(i) the rate of increase of θ in radians per seconds.
(ii)the rate of increase of the area of the sector NOP.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
(i) ===> ===> ===> ===> rad/sec.

(ii)
===>
===> cm^2/sec.
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