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Questions  

A balloon starts rising from the surface of earth. The ascent rate is constant and equal to v0. Due to wind the balloon gathers the horizontal velocity component vx = Ay. While A is constant and if y is the height of ascent, the horizontal drift of the balloon is:  

a
Ay22v0
b
Ay2v0
c
Ay22v02
d
Ay2v0

detailed solution

Correct option is A

vertical displacment  y=v0t,     ; t =yv0 horizontal displacement x=∫vxdt =∫Aydt =∫Av0tdt=Av0t22  =Av0yv022=Ay22v0

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