If I have the equation $y'' = -g -by'$, I know that a rock was thrown straight up from a specific height h, and hit the ground at time t, how do I calculate its initial velocity?
I don't understand what I use for y'' in order to figure this out?
If I have the equation $y'' = -g -by'$, I know that a rock was thrown straight up from a specific height h, and hit the ground at time t, how do I calculate its initial velocity?
I don't understand what I use for y'' in order to figure this out?
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