A body floats with n 1 of its volume keeping outside of water. If the body has been taken to height h inside water and released, it will come to the surface after time t. Then

Question

A body floats with n 1 ​ of its volume keeping outside of water. If the body has been taken to height h inside water and released, it will come to the surface after time t. Then

TestHub · Accepted Answer

F B ​ = m g ; V ( 1 − n 1 ​ ) σ g = V d g , ⇒ d = ( n n − 1 ​ ) σ a = m F b ​ − m g ​ = m v σ g ​ − g , a = v ( n n − 1 ​ ) σ v σ g ​ − g , ⇒ a = n − 1 n g ​ − g n ​ ⇒ a = n − 1 g ​ Now for time, h = 2 1 ​ a t 2 , h = 2 1 ​ ( n − 1 ) g ​ t 2 , ⇒ t = g 2 h ​ ( n − 1 ) ​ =⇒ t α n − 1 ​

Physics - Fluid Question with Solution | TestHub

Options:

Doubts & Discussion