The Work Done by the Force Exerted by the Spring

question 68

Multiple Choice

The work done by the force exerted by the spring on a mass attached to the end of the spring when the mass has displacement d is

• A) always negative.
• B) always positive.
• C) negative half the time, positive the other half of the time.
• D) positive more than it is negative.
• E) negative more than it is positive.

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