A train is moving along a straight path with uniform acceleration. Its engine passes across a pole with a velocity of \[60\text{ }km{{h}^{1}}\] and the end (guard's van) passes across same pole with a velocity of \[60\text{ }km{{h}^{1}}\]. The middle point of the train will pass across same pole with a velocity

• A. \[70\text{ }km{{h}^{1}}\]
• B. \[70.7\text{ }km{{h}^{1}}\]
• C. \[65\text{ }km{{h}^{1}}\]
• D. \[75\text{ }km{{h}^{1}}\]