Net work formula, do you know it

In summary, the net work formula is a mathematical equation used to calculate the net work done on an object. It is derived from the definition of work, taking into account the direction of the force and displacement. The units of the formula are joules (J) in the SI system. It can be used for any type of force, and is important in understanding real-world applications and the relationship between force, displacement, and work in physics and engineering.
  • #1
PepeF.
16
0

Homework Statement



a weight lifter lifts a set of weights a vertical distance of 3.64 m.
if a constant net force of 394 N is exerted on the weights, how much net work is done on the weights ?

Homework Equations



i need net work formula

The Attempt at a Solution

 
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  • #2
Hi PepeF! :smile:

work done = force "dot" distance :wink:

(W = ∫ F.dx)
 

What is the net work formula?

The net work formula is a mathematical equation used to calculate the net work done on an object. It is expressed as W = F x d, where W is the net work, F is the force applied to the object, and d is the displacement of the object in the direction of the applied force.

How is the net work formula derived?

The net work formula is derived from the definition of work, which is the product of force and displacement. Since work can either be positive or negative depending on the direction of the force and displacement, the net work formula takes into account the direction of the force and displacement to determine the total work done on the object.

What are the units of the net work formula?

The units of the net work formula are joules (J) in the SI system. This is because work is defined as the product of force and displacement, both of which have SI units of newtons (N) and meters (m), respectively. Therefore, the unit for work is N x m, which is equivalent to joules.

Can the net work formula be used for any type of force?

Yes, the net work formula can be used for any type of force as long as the force and displacement are in the same direction. If the force and displacement are not in the same direction, then the work done is calculated by using the formula W = F x d x cosθ, where θ is the angle between the force and displacement vectors.

How is the net work formula used in real-world applications?

The net work formula is used in various real-world applications, such as calculating the work done by machines, determining the energy required for a task, and understanding the efficiency of different systems. It is also an important concept in physics and engineering, as it helps in understanding the relationship between force, displacement, and work.

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