Help with Translational Motion Homework

Jane1948
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Homework Statement



I know the total frictional force required to stop a roller is 145 N, I know the frictional force required to decelerate rotary motion is Ia/r2. But I don't know the formula to decelerate translational motion of the roller. Help!

Homework Equations





The Attempt at a Solution

 
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Deceleratin is just acceleration with a negative acceleration!
 
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Jane1948 said:

Homework Statement



I know the total frictional force required to stop a roller is 145 N, I know the frictional force required to decelerate rotary motion is Ia/r2. But I don't know the formula to decelerate translational motion of the roller. Help!

Hi Jane1948! Welcome to PF! :smile:

(:wink: And happy 60th birthday? :wink:)​


What sort of roller is this?

Is this a groundsman's roller, that works much like a wheelbarrow?

If so, I don't see where the friction comes in, since rolling things (without slipping) shouldn't be slowed down by friction with the ground. :confused:
 

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