Sunday, November 13, 2011
A 170-kg granite rock (density = 2700 kg/m3) is dropped into a lake. A woman dives and tried to lift the rock.?
A 170-kg granite rock (density = 2700 kg/m3) is dropped into a lake. A woman dives and tried to lift the rock. Determine how much force the woman needs to apply to lift it from the bottom of the lake. Do you think she can do it?
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