For a body moving with uniform acceleration a, initial and final velocities in a time interval t are u and v respectively. Then, its average velocity in the time interval t is :
(v+at2)
(v−at2)
(v−at)
(u+at2)
A
(v+at2)
B
(v−at2)
C
(v−at)
D
(u+at2)
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Solution
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S=ut+12at2 v=u+at Average velocity =Totaldisplacement(s)Totaltime(t)=ut+12at2t=u+12at
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