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2015-03-03T12:51:38+08:00

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Speed is the rate of an object moving with a certain distance and time.

The formula in finding the speed is distance x time.

s = dt
   = (60 m)(4 s)
   = 240 m/s
   *We need to find the least significant figure to get the final answer. In this case, it's 1.

So the answer is 200 m/s.
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