A rocket with a lift-off mass 3.5xx10^4 ...

A rocket with a lift-off mass `3.5xx10^4 kg` is blasted upwards with an initial acceleration of `10m//s^2`. Then the initial thrust of the blast is

`3.5 xx 10^5` N

`7.0xx10^5`N

`14.0 xx 10^5`N

`1.75xx10^5`N

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