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camillaknyazeva
@camillaknyazeva
July 2022
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При t>2 тело движется по закону s(t)=3/(t-2). Найдите мгновенную скорость тела при :а)t=3c, b)t=4,5c
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Verified answer
S(t)=3/(t-2)
S`(t)=-3/(t^2-4t+4) = мгновенная скорость в момент t
t=3
S`(3)=-3/(9-12+4)=-3/1=-3
S`(4.5)=-3/(20.25-18+4)=-3/6.2=-0.48
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Verified answer
S(t)=3/(t-2)S`(t)=-3/(t^2-4t+4) = мгновенная скорость в момент t
t=3
S`(3)=-3/(9-12+4)=-3/1=-3
S`(4.5)=-3/(20.25-18+4)=-3/6.2=-0.48