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Question

A particle is moving in a circle of radius 4 cm with constant speed of 1 cm/s. Sum of average speed, average velocity and average acceleration in a time interval from t=0 to t=T4 be x. Here, T is the time period of the particle. Find x.

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Solution

At t=0, ac=v2r=124=0.25^ycm/s2
Also v=1^xcm/s

At t=T4, ac=v2r=124=0.25^xcm/s2

Also v=1^ycm/s

Thus average acceleration aavg=2(0.25)=0.3535cm/s2

Average velocity vavg=2(1)=1.414cm/s

Average speed savg=1cm/s

x=0.3535+1.414+1=2.77

[x]=2

438997_206946_ans.png

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