
Home > PC > Chapter 10 > Lesson 10.2.3 > Problem 10-107
10-107.
This occurs when y(t) = 0.
Solve for t (in terms of θ) if −16t² + 120(sin θ)t + 7 = 0.
The answer for t is not pretty, but substitute it into the equation x(t) = 120(cos θ)t.
You will need to graph this to determine when the distance is a maximum.