question_answer

A cubical block of side 0.5 m floats on water with 30% of its volume under water. What is the maximum weight that can be put on the block without fully submerging it under water? (Take density of water \[={{10}^{3}}kg/{{m}^{3}}\]) [JEE Main 10-4-2019 Afternoon]

A) 65.4 kg

B)               87.5 kg

C) 30.1 kg            

D) 46.3 kg

Correct Answer: B

Solution :

\[M={{\rho }_{L}}[0.5\times 0.5\times 0.35]\] \[={{10}^{3}}[0.0.875]\] \[M=87.5kg\]