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CBSE Class 9 Answered

a metallic sphere of radius 2 centimetre is completely dipped in water find the force of buoyancy in density of water is 1000 kg per metre cube
Asked by arunkumarfacebookking896 | 06 Apr, 2019, 06:49: AM
answered-by-expert Expert Answer
R a d i u s space o f space t h e space s p h e r e space equals space 2 c m space equals space 0.02 m
v o l u m e space o f space t h e space s o l i d space s p h e r e space equals 4 over 3 space space cross times straight pi cross times straight r cubed space equals 4 over 3 cross times 3.14 cross times left parenthesis 0.02 right parenthesis cubed space equals space 33.5 cross times 10 to the power of negative 6 end exponent space straight m cubed
Force space of space bouyancy space equals space density space of space water space cross times space volume space immeresed space cross times space acceleration space due space to space gravity
straight F space equals space 1000 cross times 9.8 cross times 33.5 cross times 10 to the power of negative 6 end exponent
straight F space equals space space 0.33 space straight N
Answered by Ankit K | 06 Apr, 2019, 10:23: PM
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