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nadavg54
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[PLAIN]http://img221.imageshack.us/img221/541/slope.png
two masses sliding down a slope[slope can't move] like in the attached picture.
there is a static friction 'c' between the two masses. and between mass a and the slope there isn't any friction.
so I am trying to figure out the equation of each mass , please tell me whether I am right or wrong.
Ma=mass of body a f=static friction force= Nb*c
Mb=mass of body b
Na=normal force of body a
Nb=normal for of body b
a= mass A and mass B acceleraiton
forces on mass b :
f+Mb*g*sin(alpha)=Mb*a
Mb*g*cos(alpha)=Nb
forces on mass a:
Ma*g*sin(alpha) - f =Ma*a
(Ma+Mb)*cos(alpha)*g=Na
thanks for the help
Homework Statement
two masses sliding down a slope[slope can't move] like in the attached picture.
there is a static friction 'c' between the two masses. and between mass a and the slope there isn't any friction.
so I am trying to figure out the equation of each mass , please tell me whether I am right or wrong.
Ma=mass of body a f=static friction force= Nb*c
Mb=mass of body b
Na=normal force of body a
Nb=normal for of body b
a= mass A and mass B acceleraiton
Homework Equations
forces on mass b :
f+Mb*g*sin(alpha)=Mb*a
Mb*g*cos(alpha)=Nb
forces on mass a:
Ma*g*sin(alpha) - f =Ma*a
(Ma+Mb)*cos(alpha)*g=Na
The Attempt at a Solution
thanks for the help
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