As an Object Moves from Point a to Point B

question 11

Multiple Choice

As an object moves from point A to point B only two forces act on it: one force is nonconservative and does −30 J of work, the other force is conservative and does +50 J of work. Between A and B,

• A) the kinetic energy of object increases, mechanical energy decreases.
• B) the kinetic energy of object decreases, mechanical energy decreases.
• C) the kinetic energy of object decreases, mechanical energy increases.
• D) the kinetic energy of object increases, mechanical energy increases.
• E) None of the above.

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