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A gas balloon is going up with a constant velocity of 10 m / s. When this balloon reached a height of 75 m , a stone is …

Q1

A gas balloon is going up with a constant velocity of 10 m / s. When this balloon reached a height of 75 m , a stone is dropped from it and balloon keeps moving up with the same velocity. The height of the balloon when the stone hits the ground is m . ( Take \(\left.g=10m/{s}^{2}\right)\)

[JEE Main 2026, 8 Apr (Shift 2)]

a

85

b

150

c

129

d

125

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