How much force is needed to lift 70kg object in water. Volume is 30,000cm^3?
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Since it is immersed in water it will have less weight
The apparent weight = Weight in air – up thrust due to water.
Hence to lift the object up the minimum force needed is 70 *9.8 - 3e-5*1000*9.8 = 685.7.N
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The apparent weight = Weight in air – up thrust due to water.
Hence to lift the object up the minimum force needed is 70 *9.8 - 3e-5*1000*9.8 = 685.7.N
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