Two extremes ends of a moving train (engine and guard coach ) pass a pole with speeds U and V respectively with constant acceleration. The speed with which the middle point of the train will pass the same pole
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Length of train = s and acceleration = a
Here, Initial velocity = U
Final velocity = V
V² = U² + 2as
a = v²-u²/2s
Now, V = [u²+2( v²-u²/2s) s/2]^1/2
= [u²+ v²-u²/2]^1/2
= √u²+v²/2
Here, Initial velocity = U
Final velocity = V
V² = U² + 2as
a = v²-u²/2s
Now, V = [u²+2( v²-u²/2s) s/2]^1/2
= [u²+ v²-u²/2]^1/2
= √u²+v²/2
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