fe74a31b7f59cf7c96fa982434cf430a8d94c331
1# Projectile motion
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3- Horizontal velocity ($v_x$) remains constant if no drag
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5- Vertical acceleration ($a_y$) $= -g$
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7## Calculating velocity from $x$ and $y$ components
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9${\displaystyle v={\sqrt {v_{x}^{2}+v_{y}^{2}\ }}}$
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11## Displacement
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13$x=v_{0}t\cos(\theta)$
14$y=v_{0}t\sin(\theta )-{\frac {1}{2}}gt^{2}$
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16## Maximum height of an arc
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18$h={\frac {u^{2}\sin ^{2}(\theta )}{2g}}$
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20## Time of flight
21$y=u\ t\sin(\theta )-{\frac {1}{2}}gt^{2}$