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## Homework Statement

A projectile is launched at an angle 45degrees with respect to the horizontal and up a hill that is inclined 20degrees to the horizontal. The initial speed of the projectile is 50m/s. Neglect air resistance.

a)what is maximum height? - I found 63.8m which is correct

b) what is the speed of projectile 2.5s after launching? - 37m/s which is correct

c) find the distance up the hill the projectile lands.

d)calculate the magnitude and direction of the velocity of the projectile at impact.

## Homework Equations

for part c

x=vicos(45)t-.5gsin(25)t^2

x=visin(45)t-.5gcos(25)t^2

## The Attempt at a Solution

The only idea i have for part c is to change the x-y axis so that x is along the slope. Any help solving or ideas would be great.