# A projectile is shot at an angle of #pi/4 # and a velocity of # 21 m/s#. How far away will the projectile land?

##### 1 Answer

Mar 19, 2017

The projectile will land 45 m downfield, assuming it was launched over level ground.

#### Explanation:

Rather start from scratch (meaning the equations of motion) to solve this one, I will use an equation that can be derived for the range

where

Now it is a simple matter of putting values in place of variables: