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Question:

The acceleration of this particle for |x| > X0 is proportional to √(V0/mX0), proportional to V0, proportional to V0/mX0, or zero.

proportional to√V0mX0

proportional toV0

proportional toV0mX0

zero

Solution:

As potential energy is constant for |x| > X0, the force on the particle is zero hence acceleration is zero. So, correct answer is option (D).