1.A person (mass of 80g) is lifted upward by a 2 cm diameter safety rope with constant velocity. What is the tensile stress in the rope?
2.Calculate the volume (in ft^3) of a person of 180 lbf weight, assuming reasonable SG for the human body. Show work
3.Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured g/m^3. Assume that a cumulus cloud occupies a volume of one cubic km, and its liquid water content is 0.2g/m^3.
a) What is the volume of this cloud in cubic miles?
b) How much does the water in the cloud weigh in pounds.