The position function for a particular object is s equals negative 31 over 2 times t squared minus 44 times t plus 85. Which of the following statements is true?
Accepted Solution
A:
Answer: The initial velocity is - 44Step-by-step explanation:S = [tex]\frac{-31}{2}[/tex][tex]t^{2}[/tex] - 44t + 85 .Differentiating once to get the velocity , we haveV = - 31t - 44The initial velocity means that t = 0 , substitute this into the equation , we haveV = -31 (0) - 44V = -44Therefore, the initial velocity is -44