A 2.0-kg object is moving without friction along the x-axis. The potential energy curve as a function of position is shown in the figure, and the system is conservative

If the speed of the object at the origin is 4.0 m/s, what will be its speed at 7.0 m along the +x-axis?

A) 4.0 m/s
B) 4.2 m/s
C) 4.4 m/s
D) 4.6 m/s
E) 9.8 m/s


Answer: B

Physics & Space Science

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What will be an ideal response?

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