Предмет: Математика, автор: lekhaegorov2011

Материальная точка движется по закону S(t)=t³-t²+5t-2 найдите v(2)

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Автор ответа: hello93

$S(t)=t^3-t^2+5t-2\\V=\frac{ds}{dt}=3t^2-2t+5\\ V(2)=3*(2)^2-2*2+5=12-4+5=13\,m/c$

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