# What is the maximum tension in N the string can support [closed]

I have a length of string and I want to know the maximum tension the string can support. I tie one end of the string to the ceiling and the other end to a glass of mass 100 g. The glass is cylindrical, with a cross-sectional radius of 4 cm and a height of 15 cm. I fill the glass with water (density of 1 g/cm3) and discover that the string breaks when the glass is 2/3 full. What is the maximum tension in N the string can support?

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## closed as too localized by John Rennie, Waffle's Crazy Peanut, Manishearth♦Apr 17 '13 at 10:08

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Calculate the volume of the water in the glass, and from this its mass. Add the mass of the glass, multiply by the acceleration due to gravity to get the force, and this is your answer. – John Rennie Apr 17 '13 at 9:22
can you show it with mathematical way please – leava-wing Apr 17 '13 at 9:41
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