I assume the x-y axis are tilted such that the x-axis is parallel to the surface of the hill while the y-axis is perpendicular to it.
In this case, the x-component of the weight is given by:
where
m is the mass of the car
g is the acceleration of gravity
is the angle of the hill
Substituting numbers into the formula, we find
In this case, the x-component of the weight is given by:
where
m is the mass of the car
g is the acceleration of gravity
Substituting numbers into the formula, we find