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 :

block of mass 2 kg is resting on frictionless table. If it is struck b

1.	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 :
Answer» `1.5 m//s^(2)` `2.0 m/s^(2)` `2.5 m//s^(2)` None of these Solution :`F=u(dm)/(dt)=5xx1=5N` Now`a=(F)/(m)=2.5m//s^(2)` HENCE the CORRECT choice is (c)

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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 :

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