Physics ski problem?

Question

I really suck at physics, can someone help me?

You ski down a frictionless icy hill that has a slope of 30 degrees above horizontal. What is the magnitude of your acccceleration down hill?

Can someone please explain?

Answer 1

The force that propels the skier down the hill is Fd
Fd=mgsin(30) where
m - the mass of the skier
g - acceleration due to gravity

Si since Fd=ma=mgsin(30)
the acceleration you seek is
a=g sin(30)
a=9.81(.5)=4.91m/s^2