A car is moving from A to B in straight line at constant acceleration. If velocities at A and B are u and v respectively, then velocity at the midpoint of A and B is
A
v+u2
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B
2uv4+v
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C
√u2+v22
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D
v−u2
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Solution
The correct option is C√u2+v22 ⇒v2=u2+2a×2d v20=u2+2ad v20=u2+v2−u22⇒v20=u2+v22⇒v0=√u2+v22