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A rocket with a lift-off mass 20,000 kg ...

A rocket with a lift-off mass 20,000 kg is blasted upwards with an initial acceleration of `5.0 m s^(-2)` . Calculate the initial thrust (force) of the blast.

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`F = 20.000 xx 10 = 20000 xx 5.0 , i.e., F = 3.0 xx 10^5 N`
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