Radius vector of a particle moving on a circle is
given by r = (2cos2t)î + (2sin2t)j. The speed of
particle is (where r is in m and t is in s)
(1) 4 m/s
(2) 2 m/s
(3) 6 m/s
(4) 8 m/s
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Explanation:
The speed of a particle moving in a circle of radius
varies witht time
as
, where
is in second and
in
. Find the radial, tangential and net acceleration at
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