1 answer

A worker stands a distance

* d* = 0.325 m

from the left end of a plank as shown in the figure. The plank is supported by three cords. Find the tension in each cord (in N). Assume the plank is uniform, with length *L* = 2.00 m and mass 29.5 kg, and the weight of the worker is 720 N. (Due to the nature of this problem, do not use rounded intermediate values in your calculations—including answers submitted in WebAssign.)

A worker stands on a horizontal 2.00 m long plank a distance *d* from the left end. The plank is supported by three cords.

- A cord at the right end of the plank goes up and right, making a 40.0° angle with the horizontal and applying a force vector
**T**_{1}on the plank outward along the cord. - A cord at the left end of the plank goes vertically up, applying a force vector
**T**_{2}on the plank outward along the cord. - A cord at the left end of the plank goes horizontally left, applying a force vector
**T**_{3}on the plank outward along the cord.

|**T**_{1}|

=

Write the torque equilibrium equation with the rotation axis about the left end of the plank. What are the forces acting in the vertical direction? You will need to write the correct component of *T*_{1}. N

|**T**_{2}|

= N

|**T**_{3}|

= N

(b)

**What If?** The worker now begins to walk to the right. If each of the cords can support a maximum tension of 780 N, which cord fails first?

cord 1cord 2 cord 3

At what location does this occur (measured in m from the left end of the plank)?

m

1 answer
#####
The following formation applies to the questions displayed below. Web Wizard, Inc., has provided information technology...

The following formation applies to the questions displayed below. Web Wizard, Inc., has provided information technology services for several years. For the first two months of the current year, the company has used the percentage of credit sales method to estimate bad debts. At the end of the first ...

1 answer
#####
Using the Chain rule find the derivative of the function: 1. y=(2x²-3x+1)10

Using the Chain rule find the derivative of the function: 1. y=(2x²-3x+1)10...

1 answer
#####
What is the size of an ARP packet when the protocol is IPv4 and hardware is...

What is the size of an ARP packet when the protocol is IPv4 and hardware is Ethernet? Ans: Is the size of ARP packet fixed? Explain. Ans: Assume we have an isolated link (not connected to any other link) such as a private network in a company. Do we still need addresses in both network layer and dat...

1 answer
#####
Use the standard reaction enthalpies given below to determine Delta H degree _rxn for the following...

Use the standard reaction enthalpies given below to determine Delta H degree _rxn for the following reaction: 2 S(s) + 3 O_2(g) rightarrow 2 SO_3(g) Delta H degree _rxn = ? Given: SO_2(g) rightarrow S(s) + O_2(g) Delta H degree _rxn = +296.8 kJ 2 SO_2(g) + O_2(g) rightarrow 2 SO_3(g) Delta H degree ...

2 answers
#####
Need help with paraphrasing

need help with paraphrasing.“ The Wasichus came, and they have made little islands for us and other little islands for the four-leggeds, and always these islands are becoming smaller, for around them surges the gnawing flood of the Wasichu; and it is dirty with lies and greed.” In &ldquo...

1 answer
#####
WITPT = What is the Probability that There is an 80% chance that a Metro Manila...

WITPT = What is the Probability that There is an 80% chance that a Metro Manila would be hit by at least one storm typhoon every Rainy season of June to September following a Poisson distribution. 24. WITPT there would be exactly one typhoon in July? a 0.1006 c.0.1341 e. 0.2142 b. 0.2691 d. 0.4024...

1 answer
#####
1. You must start your pgram with header comments that provide your name, date the program...

1. You must start your pgram with header comments that provide your name, date the program was last modified. 2. A bank keeps track of their customers. Write a class Customer and associated constructor(s) to initialize customers as objects. Each customer object has a number of properties including: ...

1 answer
#####
Describe the step by step process of the enzyme DNA topoisomerase II subunit A

Describe the step by step process of the enzyme DNA topoisomerase II subunit A...

1 answer
#####
USING JAVA Moving to another question will save this response Question 15 Which of the following...

USING JAVA Moving to another question will save this response Question 15 Which of the following statement prints final exam test.txt System.out.println("final "exam "test.txt"); System.out.println("final\\exam\ \test.txt"); e none of the statements System.out.println("fi...

1 answer
#####
VBA The projectile motion equations are,x=x0+v0*cos(θ)*t, y=y0+v0*sin(θ)*t+0.5*g*t^2 where x and y are the current position at...

VBA The projectile motion equations are,x=x0+v0*cos(θ)*t, y=y0+v0*sin(θ)*t+0.5*g*t^2 where x and y are the current position at time t, x0 and y0 are the projectile’s initial position, v0 is the projectile’s initial speed, θ is the initial firing angle of the projectile,...

1 answer
#####
Consider these compounds: A. NiCoz B. CaF2 C. COS D. PbCl2 Complete the following statements by...

Consider these compounds: A. NiCoz B. CaF2 C. COS D. PbCl2 Complete the following statements by entering the letter(s) corresponding to the correct compound(s). (If more than one compound fits the description, include all the relevant compounds by writing your answer as a string of characters withou...

1 answer
#####
Nitrogen is diffusing through a polymer. The nitrogen concentration on the high pressure side of the...

Nitrogen is diffusing through a polymer. The nitrogen concentration on the high pressure side of the polymer is 3 kg/ms, and on the low pressure is 1 kg/m 3 Part A If the nitrogen concentration on the low pressure side is decreased to 0.5 kg/m3, how will the diffusion flux change? decrease. increase...

1 answer
#####
4월 22일 (월) Question 1 of 11 Ifl 0, which of the following may be true?...

4월 22일 (월) Question 1 of 11 Ifl 0, which of the following may be true? D)ms-1...

1 answer
#####
Answer B & C asap please 4. Consider the following reaction and answer the questions: -...

answer B & C asap please 4. Consider the following reaction and answer the questions: - Br HSCH, SCHE нс" HC HEC a) Draw the structure of the expected cation intermediate if the reactant underwent an SNl reaction b) The reaction produces almost an equal mixture of diastereomer...

1 answer
#####
10.2.36 Convert the following equation to Cartesian coordinates. Describe the resulting curve. 8 r= 4 cos...

10.2.36 Convert the following equation to Cartesian coordinates. Describe the resulting curve. 8 r= 4 cos 0 + 7 sin 0 Write the Cartesian equation....

1 answer
#####
2. Determine whether there is a potential function for the vector field V= <yz, xz, xy>....

2. Determine whether there is a potential function for the vector field V= <yz, xz, xy>. You may use any legitimate method but you must justify your claim. If it there is a potential function, then find it and use it to evaluate the line integral ſ v.dr along the curve r(t) = <V7,4-4,6...