A bollon is moving upwards with velocity 10m/s it realese a stone

1.	A bollon is moving upwards with velocity 10m/s it realese a stone
Answer» QUESTION:\xa0A balloon is moving upwards with velocity of 10m/s. it releases a stone which comes down to the ground in 11s. find the height of the balloon when stone is dropped?ANSWERA ballon moving upwards with constant velocity 10m/s . if we release the stone from ballon , then, initial speed of stone = 10m/sec .now,\xa0initial speed = 10m/sec\xa0time = 11sec\xa0let H is the height of ballon when stone is dropped .use kinematics equation ,\xa0S = Ut + 1/2at²\xa0-H = 10 × 11 - 1/2 × 10 × (11)²\xa0= 110 - 5× 121\xa0= 110 - 605\xa0= -495 m\xa0- H = -495 mhence, H = 495 m\xa0so, height of ballon is 495m when stone is dropped .

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