Calculus problems

Calculus Level 3

원점을 출발하여 수직선 위를 움직이는 점P의 시각 t에서의 위치x가 x=t3-8t2+16t일때, 점P가 두번째로 운동방향을 바꾸는 순간의 점P의 가속도를 구하시오.


Moderator: Possible translation:

Starting with the origin of the vertical lines above the position x x at time t t of a moving point P P when x = t 3 8 t 2 + 16 t x = t^3-8t^2 + 16t , point P P . Find the acceleration of the point P P of the moment to change the direction of movement in unit per second square.

12 4 10 8

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