Answers

2016-01-14T19:14:17+08:00
Speed is also V the formula is
v= d/t (speed is equal to distance over time)
v= 4.5km/1hr
v= 4500m/60mins.
v= 75 m/mins

I HOPE YOU'LL UNDERSTAND. GOD BLESS!
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2016-01-14T19:34:37+08:00
We need to convert the unit too. So,
S =  \frac{d}{t} = ( \frac{4.5km}{1hr})( \frac{1hr}{60 mins.})( \frac{1000m}{1km})= \frac{4500m}{60mins.} =75m/min

Therefore, the answer to your question is 75 m/min.


I hope it help. ☺
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