# physics

A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 210 N and is 2.80 m long. What is the tension in each rope when the 710 N worker stands 1.80 m from one end?
smaller and larger.

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1. Draw a sketch:

T1================210N======710N=======T2

T2*2.8 - 210*1.4 - 710*1.8 = 0
Solve for T2

-T1*2.8 + 210*1.4 + 71-*(2.8-1.8) = 0
Solve for T1

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2. i keep coming up with the wrong answer for T1. i am getting 358.57 and its wrong.

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posted by kaitlyn
3. Unless your question takes T2 as the first answer, which is supposed to be (710+210)-358.57 = 561.43.

If that's not the case, verify
1. instruction for rounding of answers (to the nearest newton, two decimals, etc.)
3. Check that the numbers posted correspond to the questions on the computer.
4. Sometimes after a wrong answer, the qustion gets modified by the computer. Make sure that did not happen.

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4. -210 (1.4)<--half of 2.80<-710 (1.8) + T2 (2.8)=

-294 - 1572 + 2.8 T2=0
-1866 = -2.8 T2
-1866 = T2
_____
2.8

6666= T2

now solve for T1

T1+ T2= weigh1g+ weight 2g
we move the T2 answer to right side
T1= 710 + 210 - 666
T1= 254 N

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