## What is the definition of work equation?

To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd. If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.

## What is the equation for the work energy theorem?

The net work done on a particle equals the change in the particle’s kinetic energy: W net = K B − K A .

**What is work and energy Class 9?**

Work done on an object is defined as the magnitude of the force multiplied by the distance moved by the object in the direction of the applied force. Work done on a body moving in circular path is zero. Energy. • The energy of a body is its capacity of doing work.

### What is the formula for work in physics?

W = F × D × cos (Θ) where W is the amount of work, F is the vector of force, D is the magnitude of displacement, and Θ is the angle between the vector of force and the vector of displacement. The SI unit for work is the joule (J), and its dimensions are kg•m2/s2.

### What is work in physics?

What Is the Definition of Work in Physics? Andrew Zimmerman Jones is a science writer, educator, and researcher. He is the co-author of “String Theory for Dummies.” In physics, work is defined as a force causing the movement—or displacement—of an object.

**What is the dimension of work in physics?**

The dimension of work is the same as that of energy and is given as, [ML2T–2]. The SI unit of work is the joule (J), which is defined as the work done by a force of 1 Newton in moving an object through a distance of 1 meter in the direction of the force. A weightlifter lifts a barbell weighing 25 kg and displaces it from the ground by 2 m.

#### How do you calculate the work done by a force?

Mathematically, work can be expressed by the following equation. W = F • d • cos Θ. where F is the force, d is the displacement, and the angle ( theta) is defined as the angle between the force and the displacement vector. Perhaps the most difficult aspect of the above equation is the angle “theta.”