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A stone is dropped from a rising balloon at a height of 300 m above the ground at reaches the ground in 10 s. The velocity of the balloon when dropped was :

$(a)\;19\;ms^{-1}\qquad(b)\;19.6\;ms^{-1}\qquad(c)\;29\;ms^{-1}\qquad(d)\;0\;ms^{-1}$

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Answer : $\;19.6\;ms^{-1}$
A stone is dropped from a rising balloon at a height of 300 m above the ground at reaches the ground in 10 s. The velocity of the balloon dropped was:$\;19.6\;ms^{-1}$
answered Apr 13, 2014 by yamini.v
 

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