Calculating force we need to turn

1. Dec 1, 2012

k1mJo

Hello

I have a cylinder that diameter is 60 mm,length is 500 mm and this is approximately 11 kg .If i want to move the cylinder,how much force do i need to move?
How i calculate this kind of cylinders?

2. Dec 1, 2012

huntoon

are you rolling it? or is it sliding on it's circular face? what material is it being pushed on?

3. Dec 1, 2012

k1mJo

yes,it is being rolled and if u want to learn about friction value,it doesn't matter.

4. Dec 1, 2012

huntoon

well, if no friction, and perfectly flat surface, I don't think you need very much force at all. it's so precariously balanced on a hard line, that it should fall forward (roll) at the slightest push.

rolling resistance is your weight (lbs or newtons(kgs*9.81)) multiplied by your rolling resistance coeff. If no rolling resistance coefficient than no force to overcome that roll.

5. Dec 1, 2012

k1mJo

Thanx huntoon :), you say that we use this formula ( F=m.a) .

6. Dec 1, 2012

huntoon

I didn't say that. I said the force you need to roll something is it's weight * its rolling resistance coeff.