long answer question
After launch but before the object hits the ground, where in the figure below is
(a) \(\vec{v} = 0\)?
(b) \(v_y = 0\)?
(c) \(v_x = 0\)?
y
\(\vec{v}_y = 0\) at this point
\(\vec{v}_{y0}\)
\(\theta_0\)
x
0
\(x_0\)
\(\vec{a} = \vec{g} = -gj\)