- #1
Jadaav
- 175
- 1
When calculating the amount of work done, using the force applied and the displacement, does the weight of the object do anything ?
When calculating the amount of work done, using the force applied and
- Thread starter Jadaav
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In summary, when calculating the amount of work done, the force applied and distance traveled are key factors to consider. The formula for work is force multiplied by distance, and the unit of measurement is joules. This means that in order to accomplish a certain amount of work, a greater force must be applied over a longer distance or a lesser force must be applied over a greater distance. It is important to accurately measure and consider both factors when determining the amount of work done.
- #2
NobodySpecial
- 381
- 3
It depends - work is force * distance.
If you are lifting an object then the force is the weight.
If the object is moving on a real surface then the friction force you need to overcome will depend on it's weight.
- #3
tiny-tim
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Homework Helper
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Hi Jadaav! 
Not unless the force depends on the mass (or weight) …
for example, the https://www.physicsforums.com/library.php?do=view_item&itemid=75" by gravity depends on the weight,
and the work done by https://www.physicsforums.com/library.php?do=view_item&itemid=39" , which (even on a slope) is proportional to the weight.
Not unless the force depends on the mass (or weight) …
for example, the https://www.physicsforums.com/library.php?do=view_item&itemid=75" by gravity depends on the weight,
and the work done by https://www.physicsforums.com/library.php?do=view_item&itemid=39" , which (even on a slope) is proportional to the weight.
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- #4
Jadaav
- 175
- 1
Thanks both of you tw
For now, I'm learning of work done without friction force.
Can I have a website where you can learn work done involving 'friction' please ?
- #5
dlgoff
Science Advisor
Gold Member
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Try this one: http://hyperphysics.phy-astr.gsu.edu/hbase/fricon.html"Jadaav said:
Last edited by a moderator:
- #6
Jadaav
- 175
- 1
Thanks, it sounds like an interesting site with a brainstorming in front.:)
What is work?
Work is the transfer of energy that occurs when a force is applied to an object and it moves in the direction of the force.
How is work calculated?
The amount of work done is calculated by multiplying the magnitude of the force applied by the distance the object moves in the direction of the force. This can be represented by the equation W = F * d.
What is the unit of measurement for work?
The unit of measurement for work is joules (J), which is equivalent to a newton-meter (N*m).
Can work be negative?
Yes, work can be negative if the force applied is in the opposite direction of the movement of the object. This means that the force is doing work on the object, rather than the object doing work on the force.
Is there a difference between work and power?
Yes, work and power are related but they are not the same. Work measures the amount of energy transferred, while power measures the rate at which work is done. In other words, power is the amount of work done per unit of time.
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