Faster/slower
A person moves from a point $(-1,1)$ to $(1,-1)$.
While moving above the $x$ axis their rate is $k_1$
Whilen moving below their rate is $k_2$.
What crossing point $x$ in $[-1,1]$ minimizes time?
$k_1 =$
$k_2 =$
$x =$
A person moves from a point $(-1,1)$ to $(1,-1)$.
While moving above the $x$ axis their rate is $k_1$
Whilen moving below their rate is $k_2$.
What crossing point $x$ in $[-1,1]$ minimizes time?
$k_1 =$
$k_2 =$
$x =$