### 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 −16*t*² + 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.