A snowboarder reaches the bottom of a frictionless "halfpipe" with speed 18.4m/s . The half-pipe is a half-cylinder with curvature radius 11.0m .

How high above the edge of the halfpipe will the snowboarder fly?

Question

A snowboarder reaches the bottom of a frictionless "halfpipe" with speed 18.4m/s . The half-pipe is a half-cylinder with curvature radius 11.0m .

How high above the edge of the halfpipe will the snowboarder fly?

noelgreco · Answer

Your best bet is to use kinetic and potential energy rather than kinematics.  The boarder's kinetic energy at the bottom is equal to his potential energy at the top of his flight.

anonymous · Answer

any equations come up?

noelgreco · Answer

$$\frac{ 1 }{ 2 }mv ^{2}=mgh$$  Note that the mass doesn't matter.  Don't forget to subtract the depth of the pipe.