A Styrofoam ball of radius 47 cm falls with a terminal velocity of 8.1 m/s.

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A Styrofoam ball of radius 47 cm falls with a terminal velocity of 8.1 m/s. What is the mass of the ball? I have no idea how to really set this up or solve it. CAn someone help

Sep 25th, 2015

Thank you for the opportunity to help you with your question!

 \quad (5) \qquad V_t = \sqrt{\frac{4 g d}{3 C_d} \left( \frac{\rho_s - \rho}{\rho} \right)}
according  to formula  we need density of density of the fluid i.e \rho
and C_d is the drag coefficient.
please provide this information.

 reply as soon as possible so that  I can give you solution .


Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 25th, 2015

it's not provided. "A Styrofoam ball of radius 47 cm falls with a terminal velocity of 8.1 m/s. What is the mass of the ball?" is all that the question gives us. I copied and pasted it from my homework

Sep 25th, 2015

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