What is the Output Force of a Wheel Axle?

[NatalieWise123]

Homework Statement

You apply a force of 17 N to a wheel with a radius of 0.75 m. If the axle has a radius of 6 cm, what is the output force, assuming the machine operates under ideal conditions?

Homework Equations

The Attempt at a Solution

I don't even know how to begin to begin this. Help!

 

[Herman Trivilino]

Google "simple machines output force".

 

[Isaac0427]

Begin with thinking about all the equations you were given in class.

 

[TeethWhitener]

I don't even know how to begin to begin this. Help!

What do you know about angular momentum?

 

[NatalieWise123]

What do you know about angular momentum?

Angular Momentum= mass*velocity*radius

 

[NatalieWise123]

Begin with thinking about all the equations you were given in class.

I'm thinking it has something to do with Idea Mechanical Advantage which is output/input I believe.

 

[TeethWhitener]

How about torque? (I probably should have said torque in my first post)

 

[NatalieWise123]

How about torque? (I probably should have said torque in my first post)

We haven't learned that yet

 

[TeethWhitener]

Hmm. Ok. It is about mechanical advantage. It's just a little easier to understand if you know about torque. No big deal. But gimme a sec to think about how to explain the problem without torque.

 

[TeethWhitener]

Have you gone over concepts such as angular velocity yet?

 

[gneill]

You can think of the setup like a lever, with each arm being a radius and the fulcrum being the shared center of rotation (axis). Surely you've covered simple machines like levers?

 

[NatalieWise123]

Have you gone over concepts such as angular velocity yet?

In a really general sense. I understand it though.

 

[NatalieWise123]

You can think of the setup like a lever, with each arm being a radius and the fulcrum being the shared center of rotation (axis). Surely you've covered simple machines like levers?

View attachment 91966

Sort of. Would output force be F2?

 

[gneill]

Sort of. Would output force be F2?

Sure. For a lever, which end is "input" and which is "output" is your choice based on the situation at hand. Base your choice on the scenario presented in the problem statement.

 

[TeethWhitener]

gneill's picture is probably much better help than anything I could put into words.