# Work Done on a Suitcase by Various Forces

• Crusaderking1
In summary, the problem involves a luggage handler pulling a suitcase up a ramp with a force of 155 N at a 30 degree angle. The suitcase has a mass of 16.7 kg and travels a distance of 4.10 m. The coefficient of kinetic friction is 0.267. The work done on the suitcase by the force F is 550.0 J and the work done by the friction force is -179.0 J. The work done by the normal force and gravitational force is 0, as cos90 = 0. The total work done on the suitcase is 371 J. The final speed of the suitcase is unknown.
Crusaderking1

## Homework Statement

*I already figured the problem out*

A luggage handler pulls a suitcase of mass 16.7 kg up a ramp inclined at an angle 30.0 degrees above the horizontal by a force $\overline{F}$ of magnitude 155 N that acts parallel to the ramp. The coefficient of kinetic friction between the ramp and the incline is 0.267. The suitcase travels a distance 4.10 m along the ramp.

A. Calculate the work done on the suitcase by the force F.
B. Calculate the work done on the suitcase by the gravitational force.
C. Calculate the work done on the suitcase by the normal force.
D. Calculate the work done on the suitcase by the friction force.
E. Calculate the total work done on the suitcase.

F. If the speed of the suitcase is zero at the bottom of the ramp, what is its speed after it has traveled 4.10 m along the ramp?

F*s = Work

## The Attempt at a Solution

A. Is it:
work of F applied= (155 N)(4.10 m)cos30.0 = 550.0 J

B. Is it
work of friction=(43.7 N)(4.10 m)cos180.0 = -179.0 J

C and D. Wouldn't both be 0, considering cos90 = 0?

E. Is it just 550 J + 0 J + 0 J + -179 J = 371 J?

F. No idea, need help.

Thoughts? Thanks!

Last edited:
s is along the ramp right? So, why are you projecting things to the horizontal direction?

So work of f applied= 155 N(4.10 m)?

*I figured this problem out*

Last edited:

## 1. What is the definition of work?

Work can be defined as the physical or mental effort put towards achieving a particular task or goal.

## 2. What are the different types of work?

There are several types of work, including manual labor, intellectual work, skilled labor, and creative work. Each type involves different skills and abilities.

## 3. How do you measure work?

Work is typically measured in units of time, such as hours or days, or by the completion of a specific task or project. Other factors that may be considered in measuring work include efficiency, productivity, and quality of output.

## 4. What are some factors that can affect one's ability to work?

Some factors that can affect a person's ability to work include physical health, mental health, motivation, skills and abilities, and external factors such as work environment and support from colleagues.

## 5. How can one increase their productivity at work?

To increase productivity at work, one can try setting goals and deadlines, prioritizing tasks, minimizing distractions, taking breaks, and seeking feedback and support from colleagues. Additionally, maintaining a healthy work-life balance and finding ways to stay motivated can also help improve productivity.

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