$[$: Week$11.$m$|$x$]\%\%,[$: freefallxy.mp$4]$

$v_0,{}_0.$

$x(t)=v_{0}cos({}_0)t$

$y(t)=v_{0}sin({}_0)t-0\mathrm{.}5g{t}^2$

$t$ : $$

$g$ : $(9\mathrm{.}81\frac{m}{s^2})$

$v_0=10,{}_0=30,($: $x,$:y$).$

$.t$: $0t9,$: $0\mathrm{.}01$

$$ x$$: $09,$ y$$: $01\mathrm{.}4.($xlim$,$ ylim $$ axis $)$

$$ 'MPEG$-4\text{'}$

$$: $,$: $,$ symbol: circle, symbol $$: $8$

MATLAB