Multi Object System Problem № 10 (Simplified Atwood's Machine)
This is a third example (done the next day) of a multi-part system. Again, these are typically solved by two applications of the sum of force equation. The whole system is to the left of the free body diagram, the single block is to the right. The free body diagram is intense. Don't look at it all at once. Go 3rd law pair by 3rd law pair (again, follow the colors) to make sure it makes sense. NOTE, the green Ft arrows are only equal for an ideal pulley. In the spring we'll break the symmetry of that relationship when we do real pullies and carry out an Atwood's lab.
Multi Object System Problem № 10 (Simplified Atwood's Machine)
This is a third example (done the next day) of a multi-part system. Again, these are typically solved by two applications of the sum of force equation. The whole system is to the left of the free body diagram, the single block is to the right. The free body diagram is intense. Don't look at it all at once. Go 3rd law pair by 3rd law pair (again, follow the colors) to make sure it makes sense. NOTE, the green Ft arrows are only equal for an ideal pulley. In the spring we'll break the symmetry of that relationship when we do real pullies and carry out an Atwood's lab.