block of mass 2 kg is resting on frictionless table. If it is struck by a jet releasing water at the rate of 1 kg/s and at the speed of 5 m/s, find initial acceleration of the block :

Options

A. `1.5 m//s^(2)`
B. `2.0 m/s^(2)`
C. `2.5 m//s^(2)`
D. None of these

Answer

c

Explanation

`F=u(dm)/(dt)=5xx1=5N`
Now`a=(F)/(m)=2.5m//s^(2)`
Hence the correct choice is (c)