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A balloon starts rising from the ground with an acceleration of 1.25m/s2.a stone is released from the balloon after 10 seconds. 1)find maximum hieght of the stone from the ground and time taken by the stone to reach the ground
Height of ballon at 10 second isS=1/2 *(1.25)*(10)*(10)=62.5Speed of ballon after 10 sec-v=10*1.25=12.5m/s in upward direction The releasesd stone will aquire this speedAnd acceleration for stone will be g=10m/s²Therfore time taken by stone to reach the ground62.5=-(12.5)t+1/2(10)(t²)-> t=5 sMaximum height attained by stone62.5+7.8=70.3
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