Intervals of Increasing Speed

Question

The velocity of a particle moving along a line is given by $$\displaystyle v(t) = -t^3 + 2t^2 + 2^{-t}$$ for $$t \geq 0$$. For what values of $$t$$ is the speed of the particle increasing?

Accepted Answer

(0.177, 1.256) and (2.057, ∞)

Answer

(0, 2.057) only

Answer

(0, 1.256) only

Answer

(0, 0.177) and (1.256, ∞)

Intervals of Increasing Speed

Question Leaderboard