Mathematics, 12.08.2020 07:01 asimms8504
If an arrow is shot upward on Mars with a speed of 62 m/s, its height in meters t seconds later is given by y = 62t − 1.86t². (Round your answers to two decimal places.) Estimate the speed when t = 1. Can you please show me the steps to solve this?
Answers: 2
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with respect to time 
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(same as ![\begin{aligned}\frac{dy}{d t} &= \frac{d}{d t}\left[62 \, t - 1.86\, t^2\right] \\ &= 62\,\left(\frac{d}{d t}\left[t\right]\right) - 1.86\, \left(\frac{d}{d t}\left[t^2\right]\right) \\ &= 62 \times 1 - 1.86\times\left(2\, t) = 62 - 3.72\, t\end{aligned}](/tpl/images/0719/6399/bdb26.png)
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meters per second.
to find the (vertical) velocity of this arrow at that moment: 
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If an arrow is shot upward on Mars with a speed of 62 m/s, its height in meters t seconds later is g...
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