# Cylinder supported by two rollers

• I
I'm trying to calculate the static reaction force on cylinder supported by two rollers due to the weight of the cylinder. I found that the reaction force is inversely proportional to the Cosine of the contact angle, but what does it mean? when the contact angle is close to 90 degrees is the reaction force much higher then the weight of the cylinder? if the weight of the cylinder is the source of the reaction forces how can it be lower than the reaction forces?

#### Attachments

• 89.8 KB Views: 50

Related Classical Physics News on Phys.org
BvU
Homework Helper
2019 Award

Are you aware that certain components of the reaction force oppose each other ?

And: is this homework ?

But still -the non opposing reaction components are much higher then their "source" - the weight of the cylinder. I just wonder how can it be (and its not homework..)

BvU
Homework Helper
2019 Award
Compare it with holding up a weight hanging from the middle of a wire by pulling apart the two ends. There's a ##1/\cos## in there too ...

sophiecentaur