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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A force exerts an impulse Ion a particle changing its speed from initial velocity u to final velocity 2u. The applied force and the initial velocity are oppositely oriented along the same line. The work done by the force is

A force exerts an impulse Ion a particle changing its speed from initial velocity u to final velocity 2u. The applied force and the initial velocity are oppositely oriented along the same line. The work done by the force is

A block of mass M is kept on a smooth horizontal surface. A jet of water emerging from a nozzle of cross section it strikes the block horizontally with a speed u. Assuming rho as the density of water.