A balloon starts rising from the ground with an acceleration of 1.2m/s. After 8s a stone is released from the balloon the stone will....
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The velocity of the balloon at time t=8 using v=u+atV=(1.25)8V=102as=v2-u^2 S=40A=-g=-10Using second identity,-40=(10)t -1/2gt2Time 4,2Time can`t be negative , the stone will hit ground in 2 secs
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