A. upward at uniform speed
B. upward with uniform acceleration
C. downward with uniform speed
D. downward with uniform acceleration

Correct Answer: Option D

D. downward with uniform acceleration

SEE ALSO  If the partial pressure of water vapour at 27°C is 18 mm Hg and the saturated vapour pressure of the atmosphere at the same temperature is 24 mm Hg, the relative humidity at this temperature is?

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