position-function

If the vertical position of a ball as a function of time is LaTeX: yleft(tright)=bcdot t+ccdot t^3:


y



(


t


)



=


b





t


+


c






t


3



where b = 2 m/s and c = -2 m/s3, what is the acceleration of this ball at the time t = 2 s?

Group of answer choices

-18 m/s2

-36 m/s2

-24 m/s2

-12 m/s2

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