A negative value of acceleration for a moving object signifies that:

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A The object is moving in a negative direction
B The object is at rest
C The speed of the object is constant but non-zero
D The velocity of the object is decreasing over time

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Answer: D. The velocity of the object is decreasing over time

Correct Answer: D) The velocity of the object is decreasing over time
Explanation: Acceleration a = (v - u)/t. If the final velocity v is less than the initial velocity u, the change in velocity is negative. This is negative acceleration (retardation).

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A negative value of acceleration for a moving object signifies that:

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