@LgΕ·
ͺ
mv (½ φ)sυ (άγYAςΔ)|1757 N 10 25 ϊ
mv
mvΌΒ (΅OYA΅YΊqA¨t)|1795 N 4 3 ϊ°dγωΖ ͺ346EΆ»9N
½ φ (mv)
Rϋ
¬q
¨
