An object of mass 1000kg is tied to the bottom of a pond with a light chain.
If the tension in the chain is 1500N,what is the mass of water displaced by the object?
phy力的問題
2011-01-15 1:56 am
回答 (1)
2011-01-15 4:06 am
✔ 最佳答案
Since the object is in equilibrium,upthrust = weight of object + tension in the chain
but weight of object = 1000g N = 10,000 N (take g = 10 m/s2)
and tension in the chain = 1500 N
thus, upthrust = (10 000 + 1500) N = 11 500 N
By Archimedeus Principle, upthrust = weight of water displaced
hence, weight of water displaced = 11 500 N
mass of water displaced = 11500/g kg = 1150 kg
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