a$)(5$ points$)$ A baseball is thrown straight upward on the Moon with an initial speed of

$0$ m$/$s$.$ What is the maximum height reached by the ball? $($gmoon $=1\mathrm{.}63$ m$/$s$2)$

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$$b$)(10$ points$)$ A ball $($on the Earth$)$ is thrown from the top of one building toward a second, tall, building $50\mathrm{.}0$ m away. The ball is thrown at $20\mathrm{.}0$ m$/$s @$40\mathrm{.}0$o above the horizontal.$$How far above or below $($and which$)$ its original level will the ball strike the wall of the second building? $($Include above, below, or even in your answer.$)$