What Are The 3 Versions Of Work Formula?

What is the dimensional formula of work done?

Notes: The dimensional formula of work done is M1 L2 T-2.

Work is said to be done by a force when the body is displaced actually through some distance in the direction of applied force.

The S.I unit of Work is joule..

Is the formula of energy?

Albert Einstein proposed that mass and energy are related by the equation “E = m_c^2,” where “E” is the object’s energy in joules, “m” is the object’s mass and “c” is the speed of light.

What is zero work done with example?

1) A simple example of zero work is when you stand holding a bag in your hands and do not move it. Your hands apply a force on the bag to balance the force of gravity exerted on it but since there is no displacement of the bag, the work done on it by you (your force) and also the gravity is zero.

What are the different formulas for work?

WorkWork = Force • Displacement • Cosine(theta)W = F • d • cos(theta)Power = Work / time.P = W / t.P = F • cos(theta) • (d/t)P = F • v • cos(theta)PEgrav = m•g•h.KE = 0.5 • m • v2More items…

How do you derive the work formula?

In this way, the unit for work and energy is the same.Transfer of Energy. When we do work we transfer energy from one object to another. … Formula for Work. Work = Force × Distance × Cosine (refers to the angle between movement direction and force) … Derivation of Work Formula. W = work done.

What are the two formulas for work?

What is Work, Energy and Power?WorkFormulaWe can calculate work by multiplying the force by the movement of the object. W = F × dUnitThe SI unit of work is the joule (J)Energy8 more rows

What is work and its types?

Work: In physics work is said to be done when a force acting on a body displaces it through a certain distance. As work is the dot or scalar product of two vectors (force and displacement), therefore, it is a scalar quantity. … Special cases: CaseI: When the body moves in the direction of the force.

What is the formula of work done in electricity?

So if 1 watt = 1 joule per second, it therefore follows that: 1 Joule of energy = 1 watt over one unit of time, that is: Work equals Power multiplied by Time, (V*I*t joules). So electrical energy (the work done) is obtained by multiplying power by the time in seconds that the charge (in the form of a current) flows.

How do you calculate work?

The work is calculated by multiplying the force by the amount of movement of an object (W = F * d). A force of 10 newtons, that moves an object 3 meters, does 30 n-m of work. A newton-meter is the same thing as a joule, so the units for work are the same as those for energy – joules.

What is current formula?

The relationship between current and resistance in an electric circuit. Current is usually denoted by the symbol I. Ohm’s law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm’s law is I = V/R.

What is the SI unit of work done?

JouleS.I. unit of work is Joule. Work done when a force of 1 Newton displaces the body through a distance of 1 metre in the direction of force.