Answer Details:

by conservation of energy,

the energy spent in doing the work=change in ke + change in pe

therefore, 230=10 x 2 x 2  + 0.5 x 10 x v²

230=40+5v²

v²=190/5

=38m/s

now,v²_=2as

a=38/4

=9.5 m /s²

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