# A projectile is shot from the ground at an angle of #pi/8 # and a speed of #2 m/s#. When the projectile is at its maximum height, what will its distance from the starting point be?

##### 2 Answers

#### Explanation:

The projectile is at its maximum height when

Its

Its

So the total distance

So after all the algebra, we get

The distance form the starting point,

#### Explanation:

The equation for the y coordinate is:

The equation for the x coordinate is:

The time that the projectile is at is maximum height is at the axis of symmetry of the parabola:

The distance, d, at the above time is: