How to Solve a Problem with Multiple Pulleys - Finding the Tension

Physics Ninja looks at a problem with multiple pulleys. I consider a case where the block is raised at constant velocity and a case where the block is accelerating upwards. I solve for the tension in each segment of rope and the applied force.

[markomitreski]

your explanations are very well and also the exercises are a lot of fun. Keep up the good work 👍

[brunogreco]

Outstanding explanation. Thank you so much.

[NandoValenzuela]

I have a question... If i created a pulley system from top to bottom of the empire state building and you had a trigger like as if in a pistol still able to complete a pull as easily as if you fired the gun what is the heaviest weight you would be able to pick up?

[brunogreco]

hello, a query, a disk performs a uniformly varied circular motion, starting from rest, and with angular acceleration y. for the movement of a point on the disk that is at a distance R from the axis of rotation. I would like to know why this statement is false: the acceleration vector is always perpendicular to the velocity vector.

[Martin]

What if we wanted to count the mass of the pulleys? How would we proceed? Would we have to add to the equation the moment of inertia of the pulleys and their angular velocity/angular acceleration? Can you explain please? Thank you.