Terminal Velocity: Solving for D

AI Thread Summary
To determine the value of D for a man with a mass of 50.0 kg and a terminal velocity of 42 m/s, the equation V = (mg/D)^(1/2) is used. The calculated value of D is 0.28 kg/m, based on the formula. However, the textbook states the answer is 44 kg/m, leading to confusion about the correctness of either calculation. The user seeks clarification on whether the book's answer or their own is accurate. The discussion highlights the importance of verifying calculations in physics problems.
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Homework Statement



A man 50.0kg has a terminal velocity of 42m/s. What value of D is required to make this possible?

Homework Equations



V(terminal velocity) = (mg/D)^1/2

The Attempt at a Solution



D = (50kg*9.8m/s^2)/(42m/s)^2) = 0.28kg/m

The book's answer is 44kg/m. Is the book wrong or am I wrong?
 
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0.28 kg/m satisfies that equation.
 
NascentOxygen said:
0.28 kg/m satisfies that equation.

Thanks, I needed some reinforcement.
 

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