Предмет: Физика, автор: sanwer

поезд метро двигаясь со скоростью 72 километров час точки означает двигатель подходит точки B со скоростью 54 километров час Определите длину участка если коэффициент сопротивления движению равен 0,01

Ответы

Автор ответа: Sencha1

S=u^2-uo^2/2a
ma=F------->a=μg
S=Δu^2/2gμ
S=175/0,2=875 метров

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