81 \, \text{m/s}^2 \) (acceleration due to gravity)
- \( b = 50 \, \text{N-sec/m} \) (proportionality constant for air resistance)
- \( v = \frac{dx}{dt} \) (velocity of the object)
So, the equation of motion is:
\[ 10 \cdot 9.81 - 50 \cdot v = 10 \cdot
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