1.

A body of mass 8kg is moved by a force \[F=3x\,N,\] where \[x\] is the distance covered. Initial position is \[x=2\,m\] and the final position is \[x=10\]m. The initial speed is \[0.0m/s.\] The final speed is                                [Orissa JEE 2002]

A.             6 m/s  
B.             12 m/s
C.             18 m/s
D.             14 m/s
Answer» B.             12 m/s


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