Skis for jumping are longer and wider for more air resistence, and skis for racing are long and have slick surfaces and have sharp edges for going faster.
for different types of skiing such as racing or cross country or ski jumping etc.
Most don't but usually racing skis do
you land in a telemark position and you are marked between boots
In ski racing, downhill skis are the longest, but slalom skis are the widest.
Ski jumping.
you use skis to ski on snow and when you do ski jumping
yes there are different skis for men and women the difference is the radius
im a bad speller but skis or something like that
apply wax to the bottom of your skis
Skis specificallly meant for racing are often less flexible (ie: stiffer) than average recreational skis. In order for the ski to bend less, it requires a denser, heavier, and less flexible core.
Without seeing them, I would guess between $25-100 depending on condition.
I would say that a ski can easily reach 40-50 mph if one's advanced enough and using long skis and going straight down paralel. Demensions? My skis are for moderate skill levels and they are 151 cm, but racing skis can get up to 210 cm. Width depends on the brand. Probably about 4 inches.