Posted by solexgirl12 on Monday, October 13, 2008 at 4:30pm.
say she has mass m
there is a gravitational force down on her = m g
that force has a component normal (perpendicular) to the snow)=mg cos 24
there is an equal and opposite force up from the snow = mg cos 24
because there is no acceleration into or out of the snow.
HOWEVER, that gravitational force has another component down the slope = m g sin 24
There is no equal and opposite force to resist that because she is free to accelerate down the slope.
so
F = m a = m g sin 24
so
a = g sin 24
g is about 9.8 m/s^2
and sin 24 is about .407
Thank you so much; once I drew my slope levels correctly, it was no problem. Thanks again!
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