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A block of metal weighing 2kg is resting...

A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at a rate of `1kg s^(-1)` and at a speed of `5ms^(_1)`. The initial acceleration of the block is

A

`2.5 m//s^(2)`

B

`5 m//s^(2)`

C

` 0.4m//s^(2)`

D

0

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