a balloo starts rising from ground from rest with an upward acceleration of 2 ms -2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly: 1)0.3 secs 2)0.7 secs 3)1 secs 4)1.4 secs

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bharat bajaj · Answer

After 1 second, The speed of stone = The speed of balloon at that instant Distance from ground when stone is dropped = 1/2. 2 = 1 m Speed of stone = 2.1 = 2 m/s upwardsg = 10 v = u + at s = ut + 1/2 a t^2 -1 = 2t - 5t^2 5t^2 - 2t - 1 = 0t = 2 + v24 / 10 t = 0.7 sOption 2) is correct.Thanks Bharat BajajIIT Delhi askiitians faculty

Arun Kumar · Answer

Hello Thanks & Regards Arun Kumar Btech, IIT Delhi Askiitians Faculty

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a balloo starts rising from ground from rest with an upward acceleration of 2 ms -2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly: 1)0.3 secs 2)0.7 secs 3)1 secs 4)1.4 secs

a balloo starts rising from ground from rest with an upward acceleration of 2 ms^-2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly:
1)0.3 secs
2)0.7 secs
3)1 secs
4)1.4 secs

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a balloo starts rising from ground from rest with an upward acceleration of 2 ms -2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly: 1)0.3 secs 2)0.7 secs 3)1 secs 4)1.4 secs

a balloo starts rising from ground from rest with an upward acceleration of 2 ms-2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly:1)0.3 secs2)0.7 secs3)1 secs4)1.4 secs

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a balloo starts rising from ground from rest with an upward acceleration of 2 ms^-2 . Just after 1 second, a stone is dropped from it.The time taken by stone to strike the ground is nearly:
1)0.3 secs
2)0.7 secs
3)1 secs
4)1.4 secs