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Grade: 12 

                        
The work done by lifting a body of mass 20kg and specific gravity 3.2 to a height of 8m in water is?(g=10ms-2)
3 years ago

Answers : (1)

Srivathsa
13 Points 
							
Bouyant force =Mg/density =200/3.2=62.5
Weight of body in water=Weight - bouyant force=200-62.5=137.5
 
W=F•S=FScosx=137.5×8×1=1100J
✓✓
one year ago
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