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Domestikus
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Equilibrium problem
http://www.deviantpics.com/image.php?id=5029_4A04401C
Mass m is atached to the wall with a light string and set on a trolley with an inclined plane.
The string is parallel with the plane. Let's say that there is no friction at all.
Determine intensity of the horizontal force which has to act upon the trolley so that the system stays motionless.
2. The attempt at a solution
Tsin(alpha)=G
Tcos(alpha)=F
F=mg/tg(alpha)
But I'm not sure if this is correct. If we let alpha be 0° than force F would have to be infinite. Also this would mean that tension T is greater than G and that seems odd too.Can you please tell we what am I doing wrong?
Thanks
Homework Statement
http://www.deviantpics.com/image.php?id=5029_4A04401C
Mass m is atached to the wall with a light string and set on a trolley with an inclined plane.
The string is parallel with the plane. Let's say that there is no friction at all.
Determine intensity of the horizontal force which has to act upon the trolley so that the system stays motionless.
2. The attempt at a solution
Tsin(alpha)=G
Tcos(alpha)=F
F=mg/tg(alpha)
But I'm not sure if this is correct. If we let alpha be 0° than force F would have to be infinite. Also this would mean that tension T is greater than G and that seems odd too.Can you please tell we what am I doing wrong?
Thanks
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