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Q.

A particle moves in a straight line with uniform acceleration. Its velocity at time t = 0 is v1 and at time t =t is v2.The average velocity of the particle in this time interval is v1+v22.  

Is this statement true or not?

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a

True

b

False

c

None of the above

d

Both

answer is B.

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Detailed Solution

v=u+at

i.e. v-t function is linear. In linear function. 

 average value =( final value + initial value )2   vav=vf+vi2=v1+v22

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