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A particle moves in circle of radius 4cm with const.speed of 1cm/sec.
Find Avge.Spd, Avge.Vel And Avge.Acclrtn in time interval from t=0 to t=T/4.Here T is time period of particle.
Also tell me Is speed essential for a body to have an acceleration?
Dear chilukuri
speed = distance/time
1 =2 ∏ * 4 /T
So T=8∏ sec
Avg speed = total distance/time
=2 ∏ /(T/4)
=2 ∏ /2 ∏
=1 cm/sec
Avg velocity =total displacement/time
=4√2/(T/4)
=4√2/2 ∏
=2√2/∏ cm/sec
Avg Acc = |change in velocity vector|/total time
=|-vi-(-vj)|/2∏
=v√2/2∏
=√2/2∏ cm/sec2
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