1.

A hydrogen balloon released on the moon

Answer»

climbs up with an ACCELERATION of `6 xx 9.8 ms^(-2)`
FALLS down with an acceleration of `9.8 xx 6 ms^(-2)`
falls with acceleration of `9.8 ms^(-2)`
falls with an acceleration of `(9.8)/(6) ms^(-2)`

ANSWER :D


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