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ruby92:
thnkx this actually makes sense  :)

ruby92:
the ans to the first question is c 330ms-1...
any ideas

astarmathsandphysics:
Because 330 is in the range 327.66 -3% to 327.66+3%

ruby92:
thnkx :D

ruby92:
A balloon is ascending with a uniform vertical velocity of 10ms-1.when at a height of 600m above the ground. A stone is dropped from it.
how long does the stone take to strike the ground?
with what velocity does the stone strike the ground

ASAP please
thnkx

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