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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Figure shows a hollow cube of side ‘a’ and volume ‘V’. There is a small chamber of volume V/4 in the cube as shown. The chamber is completely filled by in kg of water. Water leaks through a hole H and spreads in the whole cube. Then the work done by gravity in this process assuming that the complete water finally lies at the bottom of the cube is

Figure shows a hollow cube of side ‘a’ and volume ‘V’. There is a small chamber of volume V/4 in the cube as shown. The chamber is completely filled by in kg of water. Water leaks through a hole H and spreads in the whole cube. Then the work done by gravity in this process assuming that the complete water finally lies at the bottom of the cube is

and are joined together with a spring of stiffness k as shown in Fig. Suddenly block m2 receives a horizontal velocity v0 then the maximum extension xm in the spring is Two blocks m1 and m2 are pulled on a smooth horizontal surface