An object in motion stays in motion with the same velocity unless acted on by an unbalance force. That is newtons 1st law. Skiing demonstrates this because you are staying in motion by resisting the force of gravity and friction, so you are the inbalance force. An ubalanced for is a force when two object pushed against each other and one wins. So there is an unbalanced for. So when you skiing your that ubalanced force which is resisting gravity and friction.
Its a matter of being scientifically rigorous. You can not claim the 2nd law as a law unless you first establish the first law.
the law of inertia
yeah.
Law of inertia.
Newton's second law deals with mass and force as it relates to acceleration. Acceleration down the hill is the main part of skiing, which skiers can affect by changing their mass or the force they use to push themselves down the hill.
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Law of Inertia.
It isn't.
It is associated with the law of gravitational pull.
Newtons first law of physics
Actually, the first one is completely independent on the second one. But the second one doesn't make any sense without the first one.
Force.