What is her speed when she is at an angle theta?

[mgillespie67]

Homework Statement

a snowboader is resting atop a large snowball with radius R when she begins to slide off the frictionless surface
a)what is her speed when she is at an angle theta?
b)find the maximum speed she can have without losing contact with the surface?
c)at what angle will she fly off the snowball?

Homework Equations

The Attempt at a Solution

 

[fatra2]

Newton's second law should be handy to solve this type of equation.

Cheers

 

[rootX]

You have to consider centripetal force in this problem. When the centripetal force gets greater than the normal force (force perpendicular pulling her towards the center of the ball) she flies off..