Recent content by Javad

Thank you for your time, I learned a lot. I follow your youtube channel that is very helpful for me.

There is no more object, just A and B, I think the image shows all details. you say the rotation is irrelevant, but I think a huge value of velocity is wasted under an unknown process (unknown for me yet) and I try to find its answer through this thread or talking with the experts on physics and...

I shared my thoughts in post #49 .

That’s good hearing it I think due to mass and fast rotation (that happens for object B), object B experiences inertial pulls in the opposite direction of rotation at the center of mass thus the object would have the tendency to skid towards the opposite direction of rotation (probably it is the...

So that's your final answer, Thanks.

Thank you, I'll see.

That's correct. That is my original question and is not from a book or a course. I increased my knowledge about the coefficient of kinetic friction.

Sorry if the question was badly written, I made it better to be clear for everyone. Please check post #40

Sorry if the question was badly written, I made it better to be clear for everyone. Two equal metal strips (the same material, the same size and mass, mass for each one is 500 g, and size for each one is 50cm* 5cm) are pushed on a straight rigid surface to reach the same velocity (v1 = 20m/s)...

This “B is moving left at 20m/s oriented 45º to its velocity” is correct, does it can help to find an answer for the question?

Absolutely correct.

Actually, I think the calculation of friction is not a matter (we can calculate it by measuring all parameters t, v, d, …), I think I need to focus on the kinetic energy, I think due to the initial applied force along the longitudinal centerline of the object (during t0-t1), and due to mass of...

No, actually object B rotates to reach angle θ = 45º at t1 and then continues sliding to stop (between t1 to full stop time angle θ = 45º is a fixed value.

No

For sure there is friction.