JEE Main Physics question

A particle of mass moves on the -axis as follows: it starts from rest at from the point and comes to rest at at the point . No other information is available about its motion at intermediate times (). If denotes the instantaneous acceleration of the particle, then [IIT JEE 1993]

• (A) cannot remain positive for all in the interval Correct
• (B) cannot exceed 2 at any point in its path
• (C) must be at some point or points in its pathCorrect
• (D) must change sign during the motion, but no other assertion can be made with the information given