A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.5 m/s². How much mass (ballast) must be thrown out to give the balloon an upward acceleration of magnitude 1.5 m/s² (same magnitude but opposite direction)? Assume that the upward force from the air (the lift) does not change because of the decrease in mass. Number Units
A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.5 m/s². How much mass (ballast) must be thrown out to give the balloon an upward acceleration of magnitude 1.5 m/s² (same magnitude but opposite direction)? Assume that the upward force from the air (the lift) does not change because of the decrease in mass. Number Units
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A hot-air balloon of mass 200 kg is descending vertically with downward acceleration of magnitude 1.5 m/s². How much mass (ballast)
must be thrown out to give the balloon an upward acceleration of magnitude 1.5 m/s2 (same magnitude but opposite direction)?
Assume that the upward force from the air (the lift) does not change because of the decrease in mass.
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i
Units
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