- #1

aaronfue

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## Homework Statement

At t = 0, a projectile is located at the origin and has a velocity of 20 m/s at 40° above the horizontal. The profile of the ground surface it strikes can be approximated by the equation y = 0.4x – 0.006x

^{2}, where x and y are in meters. Determine (a) the approximate coordinates of the point where it hits the ground, (b) its velocity and direction when it hits the ground, (c) its highest point in flight and (d) the greatest distance above the ground.

## Homework Equations

v

_{o}= 20 [itex]\frac{m}{s}[/itex]

θ=40°

Horizontal Motion: x=x

_{o}

^{2}+ (v

_{o})

_{x}

^{2}t + [itex]\frac{1}{2}[/itex]at

Vertical Motion: y=y

_{o}

^{2}+ (v

_{o})

_{y}

^{2}t + [itex]\frac{1}{2}[/itex]at

## The Attempt at a Solution

This function of the ground is confusing me. I'm not sure where to start with this.