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Chilukuri Sai Kartik Grade: 12
        

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?

7 years ago

Answers : (1)

Badiuddin askIITians.ismu Expert
147 Points
										

Dear chilukuri


 


6181-1822_7662_untitled.JPG


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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7 years ago
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