How to calculate snowboard acceleration

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To calculate snowboard acceleration, start by drawing a free-body diagram and defining a coordinate system with the x-axis parallel to the slope. Identify the three forces acting on the snowboarder: gravitational force, normal force, and frictional force. Use the equation Fnet = ma to find the net force, where Fnet is the sum of the forces in the x-direction. Calculate the gravitational force component along the slope using sine and subtract the frictional force, which is determined by the coefficient of static friction and the normal force. Finally, divide the net force by the snowboarder's mass to find the acceleration, and there is no need to convert mass from kilograms to Newtons for this calculation.
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HI I just need to know how to calculate acceleration given the following question or atl east point me in the right direction? Three friends are snowboarding? One has a mass of 50kg, one has a mass of 100kg and one has a mass of 150kg. The hill inclination is 60 degrees. There is a coeffecient of static friction of .10/ Calculate acceleration for each igrnoning air resistance...

Thanks and let me know
 
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Well forget about the other 2 riders and just deal with 1 at a time. Draw a freebody diagram and define a coordinate system in which the x-axis is parallel to the slope. That way you can simply break all the vecotrs into x-components and deal with them that way. Only equation you need is Fnet = ma. Remember Fnet means the sum of all the forces acting on the object. There are 3 forces in this problem that can be acting on the person.
 
I get it up until that point...I get lost after doing that leg work. I know that you do sin cos tan...find the missing vector quantities, but then get sort of stuck? Do I just need to find the missing vector quantities, then divide the total by the mass? I don't assume I have to change the kg to Newtons correct?
 
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