a ball filled with air has a volume of 500 cm cube . calculate the minimum force applied by a child to put in completely inside the water(take g = 10 m s -square)
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here => force = mass * gravity
=> density * volume * gravity
and density of water is 1g/cm3
=> 1*500*10 => 5000 N
=> density * volume * gravity
and density of water is 1g/cm3
=> 1*500*10 => 5000 N
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