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Question 5(Multiple Choice Worth 4 points) (01.04 MC) Which of the following correctly describes the relationship between speed and velocity? Speed is the change in velocity over time; velocity is distance plus direction. Speed is the change in distance over time; velocity is speed plus direction. Speed is distance plus direction; velocity is speed plus time. Speed is the change in acceleration; velocity is distance over time.

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Answer:

Speed is the change in distance over time; velocity is speed plus direction

Explanation:

Speed is defined as the change in distance covered by a body with respect to time while velocity the change in displacement of a body with respect to time. Speed is a scalar quantity since it does not specifies direction while velocity is a vector quantity because it specifies both magnitude and direction.

Speed can only be equal to the velocity if it also specifies direction.

Based on the definition above, it can be concluded that speed is the change in distance over time and velocity is speed plus direction.

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