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A body of mass m = 10^(-2) kg is moving ...

A body of mass `m = 10^(-2)` kg is moving in a medium and experiences a frictional force F = -`kv^(2)`. Its initial speed is `v_(0) = 10 m cdot s^(-1)`. If after 10 s, its energy is `(1)/(8)mv_(0)^(2)`the value of `k` will be

A

`10^(-3) kg cdot m^(-1)`

B

`10^(-3) kg cdot s^(-1)`

C

`10^(-4) kg cdot m^(-1)`

D

`10^(-1) kg cdot m^(-1)cdot s^(-1)`

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