Sorry for the double post, but this edit wasnt showing up for me on other post, so i post it here.(adsbygoogle = window.adsbygoogle || []).push({});

I also came across another challenging problem, devising of an equation for Acceleration on an inclined plane.

Q: A toy car is released from rest at the top of a ramp going down to the right. Assuming that friction IS present derive an equation that could determine the acceleration of the car.

SFy - sum of forces in the y direction

SFx - sum of forces in the x direction

Fn - Force Natural

Fgy - Force Gravity in the Y-direction

Fgx - Force Gravity in the X direction

m - Mass

a - Acceleration

U - Coefficient of Friction

Fg - Force of Gracity

Ff - Force of Friction

Here is my work, though I think i went wrong with the sin and cos values

SFy = Fn - Fgy = 0

Fn = Fgy

Fn = cos(Theta)Fg

SFx = Fgx - Ff = ma

SFx = Fgx - FnU = ma

SFx = Fgx = ma + FnU

SFx = sin(Theta)Fg = ma +cos(Theta)Fg

SFx = sin(Theta)Fg / cos(Theta)Fg = ma + U

SFx = tan(Theta) = ma + U

SFx = tan(Theta) - U = ma

SFx = [tan(Theta) - U] / m = a

Once again help would be appreciated..thankz for all help and corrections

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# Homework Help: Sorry for Double Post but I need Help Please

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