Once the pfd arrives at the scene, they discover the fire on the
third floor of the museum. they calculate that the third floor window is
35 feet from the base of the building. using the hook and ladder fire
engine they must extend the ladder to fight the fire. the 50 foot ladder
is anchored to the top of the truck at a height of 7 feet. what is the
maximum distance from the building that the fire truck can be parked?
explain your reasoning.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)