How is W FS proven?

The reason why a formula is defined this way is because it satisfies the conclusion that is later derived, or it is complementary to other aspects. And w=fs derivation has a basis, it is not clear here, and it will suddenly become clear to you when you study college physics, or you can simply use dimensions to understand.

Damn, not everything is proven, some formulas are deduced from experimental data, and the simplest formulas are generally derived from this.

The most annoying person upstairs will make a lot of garbage out of any problem and despise you.

This is the definition of work, not proof.

w=fs is the formula for calculating work in physics. Gong (English: work), also called mechanical work.

If an object is subjected to a force and there is a displacement in the direction of the force, we are said to have done work on the object. Work is a physical quantity in physics that represents the accumulation of force to displacement. Similar to mechanical energy, work is also a scalar quantity, and the SI unit is joules.

w: Work, which refers to the distance that physics moves in the direction of the force.

f: Force. s: Distance, which refers to the distance that the force moves in the direction of the force.

p: Power, refers to the work done by an object in a unit of time, that is, power is a physical quantity that indicates how fast or slow the work is done.

The formula is as follows: w=fs is the work to be done.

w=pt, which is also the work of seeking to do.

p=fv, find the work power.

W has = gh and w total = fs. w(work)=f(force) s(distance, displacement); The unit of work (w) is joules.

j）。The unit of power (p) is watts.

w), time (t) is in seconds (s), w is in j (joules); The unit of p is w (watts); p(power) = w (work) t (time).

When using the formula w=fs or its deformation formula for calculation or analysis, it is necessary to pay attention to the three "identities". , that is, the distance between the force and the object should be Manchu "the same object", "the same direction" and "the same time".

In addition, it should be noted that the units of each physical quantity are uniformly based on the International System of Units. Unit.

To put it simply, w=fs

Indicates that the work w is equal to the force f

Product with displacement s. But it is implicit that the formula of the tremor is established before it is said that this force must be consistent with the direction of the displacement.

When the force and displacement direction are inconsistent, the work in the same direction can be found, and then superimposed can be done.

Hope that helps.

f generally represents the combined external force w=fs, which is the work done by the combined external force, while f generally represents the frictional force w=fs, which is the work done by the frictional force.

The mechanical power of the car is.

p=w/t=fs/t=fv

The mechanical efficiency of the car.

w q=fs qm(w is the useful work done by the internal combustion engine, and the question can be the distance traveled by the vehicle under the push of the internal combustion engine. Q is the heat energy consumed by the internal combustion engine, Q is the calorific value of the fuel, and M is the mass. ）

The formula w=fs in f refers to the force, s refers to the displacement, these two quantities are vector quantities (both magnitude and direction), from the title can know that the pull force of the person on the car is along the inclined plane. From the vector product formula, it can be seen that the length of the inclined plane is used to find the work done by the tensile force, and the height of the inclined plane is used to find the work done by gravity.

I don't know if the landlord has learned vector multiplication?

w is the work, which is to move a distance in the direction of the force.

f is the magnitude of the force.

s is the distance, which is the distance the force moves.

p is power, and power refers to the work done by an object per unit of time, i.e., power is a physical quantity that indicates how fast or slow the work is done.

w=fs is used to find the work done.

For example, if you push a box with a force of 10n (f), push 10mw=fs=10n10m=100j

The unit of w is j (joules).

The unit of p is w (watts) reference.

That's the force of the outside world on the object.

w is the work, that is, to move a certain distance in the direction of the force. Skin lead.

f is the magnitude of the force.

s is the distance, which is the distance the force moves.

p is the power, and the power refers to the work done by the object in a unit of time, that is, the power is the physical amount of the work done that indicates how fast or slow the work is done.

w=fs is used to find the work done.

For example, if you push a box with a force of 10n (f), push 10mw=fs=10n10m=100j

The unit of w is j (joules).

The unit of p is w (watts);