Question

A body weighs $50$ grams in air and $40$ grams in water. How much would it weigh in a liquid of specific gravity $1.5$?

• A. $30$ grams
• B. $35$ grams
• C. $65$ grams
• D. $45$ grams

Answer 1

Answer: (B)

$35$ grams

Buoyancy force on ball is $50-40=10=V\rho$

therefore $\rho =1$

Hence the weight in liquid =$50-V\times 10=50-1.5\times 10=35g$