A boat is traveling at speed v0 on a lake when it turns off its engine. The boat is subject to a drag force that is proportional to the cube of the boat’s speed. In other words Fd = −bv3 Find the time it takes for the boat’s speed to decrease to half its initial value.
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![t = 0.5\cdot \frac{m}{b}\cdot \left[\left(\frac{1}{2} \right)^{-2} - 1 \right]\cdot v_{o}^{-2}](/tpl/images/0600/5333/d408e.png)
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A boat is traveling at speed v0 on a lake when it turns off its engine. The boat is subject to a dra...
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