- #1

- 9

- 0

## Homework Statement

A ski-jumper comes off ramp with speed 10 m/s at angle 16° above horizontal. He hits the snow at point 30 m below point he took off. Slope is designed to make perfectly soft landing, what should be the angle of the slope where he hits? (neglect air resistance) (hint:(from book)find direction of velocity vector when he hits the snow)

## Homework Equations

for ease of use we round gravity to -10m/s

Vx=(10m/s)*(cos 16°)

=9.6 m/s

Vy=(10 m/s)*(sin 16°)

=2.8 m/s

For x:

Vf=9.6 m/s

Vi=9.6 m/s

a=0

For y:

Δr=-30 m

Vi=2.8 m/s

a=-10 m/s

## The Attempt at a Solution

That's as far as I can get without getting confused/overwhelmed. I'm thinking I need to find Δt so I can get the x displacement. But as far as what to do next???