Which of the following relations is correct? (Speed: S, Distance: D, Time: T)
A
S = D / T
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B
S = T / D
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C
S = 1 / TD
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D
S = DT
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Solution
The correct option is A S = D / T Speed is defined as the distance covered by an object in unit time.
Hence, Speed(S)=Distance(D)Time(T)
The commonly used units of speed are ms−1 and kmh−1