The position of an object at time t is given by s(t) = 1 - 12t. Find the instantaneous velocity at t = 2 by finding the derivative.

Question

anonymous · Answer

but if u derivate it the eq will be finished

anonymous · Answer

u will get v = 12!!

anonymous · Answer

so the question is incorrect LOL!!

whpalmer4 · Answer

@McLove Why do you think that makes the question incorrect?  The equation reflects an object in motion with no forces acting upon it, so no acceleration or deceleration, just constant velocity.

@thoin do you know how to take the first derivative of $s(t) = 1-12t$ with respect to $t$?  If you do so, you'll get an equation for the instantaneous velocity at time $t$.  Evaluate that at $t = 2$.

anonymous · Answer

@whpalmer4  i didn't said question is incorrect in theoretical way but tholn was asked to derivate the eq. 1-12t and then put the value t = 2 in it.

whpalmer4 · Answer

Again, part of understanding the material is realizing when you've been given a red herring.  In real life, problems are rarely so neatly sanitized and compartmentalized as in the textbook.

anonymous · Answer

THE ANSWER IS NEGATIVE TWELVE