posted by sky .
One of two 207.0 kg crates is dragged across the floor at a constant speed with a horizontal force of 197.0 N. How much force would it take to drag them both across the floor if they are tied together one behind the other?
How much force would it take to drag them both across the floor if the second is stacked on top of the first?
jamie, lucy, sky, or whoever --
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