Finding work done by worker pulls

In summary, the conversation is about finding the work done by using the equation fd cos theta. The person asking for help is advised to show their attempt by listing the forces and resolving them into vertical and horizontal components. The expert also points out that it is unlikely for the forces to be calculated with the same trigonometric function and suggests checking the understanding of friction.
  • #1
shahrilmajid
2
1

Homework Statement


45186762_10156129905398520_2106908980285538304_n.jpg


Homework Equations


fd cos theta

The Attempt at a Solution


Finding the work done. Please anybody help me[/B]

 

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  • #2
shahrilmajid said:

Homework Statement


View attachment 233203

Homework Equations


fd cos theta

The Attempt at a Solution


Finding the work done. Please anybody help me[/B]
You need to show some attempt first.
List the forces, creating symbols to represent them (like, N for normal force).
Resolve into vertical and horizontal components.
Write equations relating these.
 
  • #3
Constant velocity, a=0
f=ma , mean total f in x and y direction is totally 0
on y componen = N-W+Fsin teta
x component = fk + Fsin teta

please check
 
  • #4
shahrilmajid said:
Constant velocity, a=0
f=ma , mean total f in x and y direction is totally 0
on y componen = N-W+Fsin teta
x component = fk + Fsin teta

please check

1) It's very unlikely that the forces in two orthogonal directions are calculated with the same trigonometric function
2) In your x-direction balance both forces are pointing in the same direction
 

1. What is work done by worker pulls?

Work done by worker pulls is a measure of the force that a worker applies in order to move an object. It is calculated by multiplying the force applied by the distance the object moves in the direction of the force.

2. How is the work done by worker pulls calculated?

The work done by worker pulls is calculated by multiplying the force applied by the distance the object moves in the direction of the force. This can be represented by the formula W = F * d, where W is the work done, F is the force applied, and d is the distance the object moves.

3. What is the unit of measurement for work done by worker pulls?

The unit of measurement for work done by worker pulls is joules (J). This is the standard unit for work in the International System of Units (SI).

4. How does the angle of the pull affect the work done by worker pulls?

The angle of the pull does not directly affect the work done by worker pulls. The work done is only affected by the component of the force that is in the direction of motion. Therefore, the angle of the pull will only affect the work done if it changes the direction of the force applied.

5. What are some real-life examples of work done by worker pulls?

Some real-life examples of work done by worker pulls include pushing a shopping cart, pulling a suitcase, lifting weights, and using a hand-operated lever. Essentially, any time a person applies a force to move an object, work is being done by worker pulls.

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