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a metal piece of mass 10grm is suspended by a vertical string.the spring elongates 10cm over its natural length to keep the piece in equillibrium. a beaker containing water is now placed below the piece so as to immerse the piece completely in water. find the elongation of the spring. density of metal =9000kg/m3.

a metal piece of mass 10grm  is  suspended by a vertical string.the spring elongates 10cm over its natural length to keep the piece in equillibrium. a beaker containing water is now placed below the piece so as to immerse the piece completely in water. find the elongation of the spring. density of  metal =9000kg/m3.

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1 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

volume of metal=10/9 cc

buoyant force on metal=(10/9)*1

for spring, F=kx,

tensile force on spring =gravity- buoyant force

=10(1-(1/9))*g=kx2

10*g=kx2, x2=10cm

 

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