### Home > CALC > Chapter 12 > Lesson 12.1.3 > Problem 12-39

12-39.

A ball is thrown from a window

Assume the acceleration due to gravity is

. Find and.Find the angle at which the ball hits the ground.

First, determine when the ball hits the ground. This is when

.

Then angle is the angle created by the slope.

Think of drawing a slope triangle and calculating the angle.