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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?```
8 years ago

147 Points
```										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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8 years ago
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