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A particle moves in circle of radius R=21/22m with const. speed of 1m/s. Find:
a) Magnitude of avge.velocity=?
b)Magnitude of avge.Acceleration in 2sec=?
Dear Chilukuri
distance travell in 2 sec = 1* 2 =2m
angel made in 2 sec = 2/21/22 radian
=2*22/21 * 180 *7/22 degree
= 120 degree
avg velocity = total distance /time
= (√3 /2 * 21/22)/2 =.413 m/sec
avg acceleration = change in velocity /time
=| 1 i -(-√3 /2 i - 1/2 j)|/2
=|3/2 i+√3 /2j|/2
=√3/4 m/sec2
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