JEE Main Physics question

A body starting from rest, accelerates at a constant rate m/s for some time after which it decelerates at a constant rate m/s to come to rest finally. If the total time elapsed is sec, the maximum velocity attained by the body is given by [AMU PMT 2009]

• (A) m/sCorrect
• (B) m/s
• (C) m/s
• (D) m/s