Where is its positioned when it reached its constant velocity? What is its constant velocity?

Question

A car has a velocity of t^2 - 10t. Where is its positioned when it reached its constant velocity? What is its constant velocity?

Answer 1

Constant velocity happens where derivate becomes zero.

dV(t)/dt = 0

dv/dt = 2t - 10 = 0 ==> t = 5s

Then the velocity on that time; V(5) = 5² - 10 x 5 = -25 m/s

Please let me know if further elaboration is needed Llama.