- #1
suxatphysix
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Homework Statement
The position of a particle moving along the x-axis depends on the time according to the equation x = ct2 - bt3, where x is in meters and t in seconds.
For the following, let the numerical values of c and b be 3.5 and 1.0 respectively.
(b) At what time does the particle reach its maximum positive x position?
(f) What is its acceleration at at t = 1.0 s?
Homework Equations
The Attempt at a Solution
For (b) I tried plugging in numbers starting at 1 until the the result started to decrease. I am not sure if I must take the derivative first though.
For (f) I am assuming you take the second derivative of the equation. Is the derivative not 2-6bt ? Answer I got : -4