The Force an Ideal Spring Exerts on an Object Is

question 63

Multiple Choice

The force an ideal spring exerts on an object is given by F_x = −kx, where x measures the displacement of the object from its equilibrium (x = 0) position. If k = 60 N/m, how much work is done by this force as the object moves from x = −0.20 m to x = 0?

• A) −1.2 J
• B) +1.2 J
• C) +2.4 J
• D) −2.4 J
• E) +3.6 J

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