CBSE Class 11-science Answered
The following figure shows x-t graph of a particle. Find the time t such that the average velocity of the particle during the period 0 to t is 0.
Asked by Aradhana Goswami | 29 Jun, 2014, 12:53: AM
Expert Answer
At t = 0 sec, displacement S= 20 m
On drawing a line from point B down to x-axis we get that At t = 12 sec also S = 20 m.
Hence for time interval between 0 sec to 12 sec , change in displacement = 0
We know that average velocity = displacement / time
= 0
Hence in the time interval between 0 to t = 12 sec ,the average velocity of particle =0 .
Answered by Jyothi Nair | 30 Jun, 2014, 10:01: AM
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