20 Examples of Mechanical Work - encyclopedia

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Examples of mechanical work
Examples of mechanical work exercises

In physics it is calledmechanical work to which develops a force on an object, being able to influence its position or its amount of movement. Mechanical work is the amount of energy required to set an object in motion, vary the characteristics of said movement, or even stop it.

Like other physical forms of work, it is usually represented by the letter W (from the EnglishWork) and is commonly measured in joules, a unit for measuring energy. One joule is equivalent to the work done by a 1 Newton force on a body moving 1 meter in the direction and direction of the initial force.

Although force and displacement are vector quantities, endowed with sense and direction, work is a scalar quantity, it has no direction or meaning (like what we call “energy”).

When the force applied to a body has the same direction and sense as its displacement, the work is said to be positive. On the contrary, if the force is applied in the opposite direction to the path of displacement, the work is called negative.

Mechanical work can be calculated according to the formula:

W(work in joules)= F(force in newtons). d(distance in meters).

See also: Principle of action and reaction

Examples of mechanical work

A table is pushed from one end of the room to the other.
They pull a plow oxen in the traditional field.
A sliding window opens with constant force to the limit of its rail.
A car is pushed that has run out of gas.
A bicycle is handy without climbing on it to pedal.
A door is pulledto enter a premises.
One vehicle is towed with another or with a crane that pulls it and sets it in motion.
Crawls someoneof the arms or feet.
A piano rises through the air with a system of ropes and pulleys.
A bucket is raised filled with water from the bottom of a well.
Is collected from the grounda box full of books.
The cargo is pulled of the train, by the locomotive pulling forward.
A wall comes down with a high-powered pickup or truck.
It pulls a ropeand at the other end there are other people pulling her (cinchado).
A pulse is won overcoming the force that the opponent exerts in the opposite direction.
Lift a weight ground, like Olympians do.
A carriage is pulled by horses, like those that were used in the past.
A boat is pulled by an outboard motor, which makes it advance on the water.