The escape velocity for a planet whose radius is $1.7 \times 10^6 \ m$ and acceleration due to gravity is $1.7 \ m s^{-2}$ is
- A$1.7 \ km s^{-1}$
- B$2.89 \ km s^{-1}$
- C$1.7 \sqrt{2} \ km s^{-1}$
- D$3.4 \ km s^{-1}$
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