General Questions: An object is moving with constant non-zero velocity. Which of the following statements about it must be true?
A. A constant force is being applied to it in the direction of motion.
B. A constant force is being applied to it in the direction opposite of motion.
C. A constant force is being applied to it perpendicular to the direction of motion.
D. The net force on the object is zero.
E. Its acceleration is in the same direction as it velocity.
Answer: D
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