You have a wheel that is rolling without slipping on the ground, it is being subjected to no outside tourque or pulling force..... which way is friction acting and why.(adsbygoogle = window.adsbygoogle || []).push({});

I thought that this would be easy but it turns out to be tricky, if the wheel isn't slipping the velocity equals omega times the radius, and you solve and get a direction of the friction.... using work kenetic energy theorem.... but that direction always seems to be in the opposite direction itd have to be according to the angular velocity, can anyone help?

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# Homework Help: A friction conundrum

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