(Solved): A worker tries to move a rock by applying a 500-N force to a steel bar as shown. (a) Replace that ...

A worker tries to move a rock by applying a 500-N force to a steel bar as shown. (a) Replace that force with a equivalent force-couple system at D. (b) Two workers attempt to move the same rock by applying a vertical force at A and another force at D. Determine these two forces if they are to be equivalent to the single force of part a.

3. A worker tries to move a rock by applying a $$500?\mathrm{N}$$ force to a steel bar as shown. (a) Replace that force with an equivalent force-couple system at $$D$$. (b) Two workers attempt to move the same rock by applying a vertical force at $$A$$ and another force at $$D$$. Determine these two forces if they are to be equivalent to the single force of part $$a$$.