Question

How can speed be described?

Answer 1

The correct answer is:  [D]:

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→  " The distance traveled by an object in a certain time."

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Explanation:

Choice:  [A]:  "the mass multiplied by the acceleration of an object."
 refers to:  "force".    " F = m*a " .   → Rule out:  Choice: [A].
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Choice:  [B]: "the force on an object divided by the mass of an object."
 refers to:  "acceleration".  " F /m = a ". → Rule out:  Choice: [B].
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Choice:  [C]:  "the distance an object travels at a certain velocity."
 refers to: " the time period traveled at a specific speed AND direction."
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Choice:  [D]: " the distance traveled by an object in a certain time"."

refers to:  "speed".   → which is our answer!

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Note:  " speed = distance / time ";  That is:  " s = d/t " ;

Note that for "speed" ; the "direction of travel is irrelevant."

 → So; we can rule out: "Choice:  [C]."

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The correct answer is:  Answer choice:  [D]:

  →  " the distance traveled by an object in a certain time."
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Hope this is helpful to you in some way!  Best wishes!
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