(Solved): A snot-nosed brat in a truck observes a billboard appearing to move \( -27 \mathrm{~m} / \mathrm{s} ...

A snot-nosed brat in a truck observes a billboard appearing to move \( -27 \mathrm{~m} / \mathrm{s} \) to the east (?,ar, cast being in the \( +x \) direction), while a skater appears to be skating \( 25.03 \mathrm{~m} / \mathrm{s}, 39{ }^{\circ} \) \[ \vec{V}_{\text {MA }}=\langle \]