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Question

the average velocity of a particle moving in a straight line with constant accelerationis 10 m/s. it started with initial velocity 2 m/s. Find acceleration (in m/s2) and time (in second) for which it is possible.

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Solution

Given,
Initial velocity, u=2 m/s
Average velocity=10 m/s
We know that,
Average velocity for uniformly accelerated motion,Average velocity=u+v2=10or v+u=20or v+2=20 or v=18 m/sNow,Using v=u+ator a=v-ut=18-2t=16tHere 'a' can be calculated by putting the values of 't'

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