Home / 卿大é«åº¦æ¶æ»é度为åç´é度: \( v = v_y = 0 \, ext{m/s} \) ï¼å 为 \( v_y = 0 \))卿大é«åº¦æ¶æ»é度为åç´é度: \( v = v_y = 0 \, ext{m/s} \) ï¼å 为 \( v_y = 0 \))February 22, 2026