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From the velocity time plot shown in fig...

From the velocity time plot shown in figure find the distance travelled by the particle dureing the first 40 seconds. Also find the average velocity during this period.

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Distance in first `40 sec = /_\sec = /_\OAB+/_\BCD
= 1/2xx5xx20+ 1/2 xx5xx20
= 50+50
=100 m

Average velocity is 0 as the displacement is zero.
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