Q. 94.0( 4 Votes )

A body moving with uniform acceleration has velocities 20 ms-1 and 30 ms-1 when passing two points A and B. Then the velocity midway between A and B is:

A. 25 ms-1

B. 24 ms-1

C. 25.5 ms-1

D. 106 ms-1

Answer :


Velocity at A = u = 20 ms-1


Velocity at B = v = 30 ms-1


Acceleration = a


Let AB = x


Now, from the equations of motion, we know that,





a =


Now, at mid – point M, Velocity = vm


Also, AM =


So,




ms-1


Hence, option C is correct.

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