IB A4.5 - Pulleys

Get the Assessment: FA04.5.docx

The Assessment solved:

(This one is slightly different from the one on your formative assessment, but I think these videos will help. I want you to show me how you get the answers that are already on your FA4.5)

Show your work, round to the correct significant figures, circle your answers, and label them with units.

1. Consider the following situation where the hanging mass moves downward, and there is a coefficient of dynamic friction of 0.112 between the surface and the block resting on it. Neglect the string and pulley friction and mass.

Find the tension in the string and the acceleration of the system.


2. The 28.0 degree inclined plane is frictionless, neglect the mass of the pulley and the string:


Find the tension in the string and the acceleration of the system.


The Instruction for this unit:

Watch part 1 and part 2 and you should be able to do the problems in class...