A sword fish jumps out of water to escape a fisherman. The path the swordfish travels is described by h = -0.3d2 + 2d where d is the horizontal distance and his the height, both are measured in feet. Can the swordfish jump over a fishing boat that is 5 feet wide and sitting 3 feet above the water level without touching the boat? Yes or No Show or explain how you arrived at your solution. Hint: a graph will help.

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)