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камень пущений по поверхні льоду зі швидкістю 2м/с пройшов до повної зупинки 20 м. Визначте коефіцієнт тертя каменя об лід
Ответы 1
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v=2 м/с s=20 м μ=?===Кинетическая энергия равна работе сил тренияm*v²/2=Fтр*sFтр=μ*m*gμ=v²/(2*g*s)=2²/(2*10*20)=0.01============================
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Автор:
rangersosa - 5 лет назад
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