Question
The velocity of a sky diver $t$ seconds after jumping is given by $v(t)=80\left(1-e^{-0.2 t}\right)$ After how many seconds is the velocity $70 \mathrm{ft} / \mathrm{s} ?$
Step 1
2 t}\right)$. We need to find the time it takes for the skydiver to reach a velocity of 70 ft/s. So, we set $v(t)$ equal to 70 and solve for $t$. Show more…
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\begin{equation} \begin{array}{l}{\text { Sky Diving The velocity of a sky diver } t \text { seconds after }} \\ {\text { jumping is given by } v(t)=80\left(1-e^{-0.2 t}\right) . \text { After how many }} \\ {\text { seconds is the velocity } 70 \mathrm{ft} / \mathrm{s} ?}\end{array} \end{equation}
Exponential and Logarithmic Functions
Exponential and Logarithmic Equations
$$ \begin{array}{l}{\text { Sky Diving The velocity of a sky diver } t \text { seconds after }} \\ {\text { jumping is given by } v(t)=80\left(1-e^{-0.2 t}\right) . \text { After how many }} \\ {\text { seconds is the velocity } 70 \mathrm{ft} / \mathrm{s} ?}\end{array} $$
Skydiving The velocity of a sky diver $t$ seconds after jumping is given by $v(t)=80\left(1-e^{-0.2 t}\right) .$ After how many seconds is the velocity 70 $\mathrm{ft} / \mathrm{s}$ ?
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