Вопрос школьника по предмету Физика
Длина лыжи 2 м, ширина её 10 см . Вычисли давление лыжи на снег, когда он стоит на лыжах , если его масса 72 кг.
Ответ учителя по предмету Физика
p=F/S.F=m*g.S=l*b.следовательно, p=(m*g)/(l*b).p=(72*9,8)/(2*10)=705,6/20=35,28 Па
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