Ответ:
x(t)=5+4t+t^2
x(t1)=x(2)=5+8+4 = 17
x(t2)=x(5)=5+20+25 = 50
v(cp)=(x(t2)-x(t1))/(t2-t1) = (50-17)/(5-2) = 33/3 = 11
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Ответ:
x(t)=5+4t+t^2
x(t1)=x(2)=5+8+4 = 17
x(t2)=x(5)=5+20+25 = 50
v(cp)=(x(t2)-x(t1))/(t2-t1) = (50-17)/(5-2) = 33/3 = 11