- #1

- 38

- 0

http://edugen.wiley.com/edugen/courses/crs1507/art/qb/qu/c09/ch09p_20.gif

I was able to get part A but I'm having trouble on b and c, I just don't know how to draw this free body diagram?

Thanks for all ur help

- Thread starter shaka23h
- Start date

- #1

- 38

- 0

http://edugen.wiley.com/edugen/courses/crs1507/art/qb/qu/c09/ch09p_20.gif

I was able to get part A but I'm having trouble on b and c, I just don't know how to draw this free body diagram?

Thanks for all ur help

- #2

- 920

- 3

First can you tell us all the forces that will have to be on the diagram?

Where, and in what direction, are all of these forces?

Maybe attach a picture of this so we can check it out.

- #3

- 38

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well at tutoring today the guy didn't explain it too sell. But I know there is the weight of the ladder and the weight of the box going down oh and the tension force of course of the top string. which I solved to equal 2202 N

I can't attach a picture of my hand drawing cause I don't have a scanner :( I really just need a equation for this problem for I'm scared that it'll pop up on the exam tomorrow :(

Thanks a lot

I can't attach a picture of my hand drawing cause I don't have a scanner :( I really just need a equation for this problem for I'm scared that it'll pop up on the exam tomorrow :(

Thanks a lot

Last edited:

- #4

- 920

- 3

Then -- to find two unknowns, you'll need to use two equations.

Use -- net force is zero, net torque is zero.

Does that help?

- #5

PhanthomJay

Science Advisor

Homework Helper

Gold Member

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Since you already have determined the tension in part A, and since the reaction at the top of the wall must be equal and opposite to (in line with) that tension force, it just becomes a matter of solving for the horizontal and vertical forces at the lower part of the wall by Newton 1 : sum of x component of forces = 0, and sum of y component of forces = 0.shaka23h said:

http://edugen.wiley.com/edugen/courses/crs1507/art/qb/qu/c09/ch09p_20.gif

I was able to get part A but I'm having trouble on b and c, I just don't know how to draw this free body diagram?

Thanks for all ur help

- #6

- 920

- 3

Yeah! that's even easier -- you get two equations just by the net force equals zero. No need for torque. Must be getting late here for me. :yuck:PhanthomJay said:by Newton 1 : sum of x component of forces = 0, and sum of y component of forces = 0.

- #7

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you guys//lady are awsome :)

Thanks a lot

Thanks a lot

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