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FROM A VERTICALLY RISING BALLOON AT A HEIGHT OF 450m an object is released, the object takes 10 seconds to reach the ground.calculate the velocityat the instance the object is released
13 years ago

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Henry
h = Vo*t + 0.5g*t^2 = 450 m.
Vo*10 + 4.9*10^2 = 450,
Vo*10 + 490 = 450,
Vo*10 = 450-490 = -40,
Vo = -4 m/s, upward.
13 years ago

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