WHAT IS WORK?
The work done in a system by a constant force is the product of the component of the force in the direction of motion and the distance through which the force acts. For unidirectional motion in one dimension, this is expressed as an equation as W = Fd cos θ, where W is the work, F is the magnitude of the force on the system, d is the magnitude of the displacement of the system, and θ is the angle between the force vector F and the displacement vector d.
Formula:
Work = Force × Displacement = F × d
Calculate work
Work and energy have the same units. From the definition of work, we see that those units are force times distance. Thus, in SI units, work and energy are measured in newton-meters. A newton-meter is given the special name joule (J), and 1J = 1N · m = 1 kg · m2 / s2. One joule is not a great deal of energy; I would lift a small 100-gram apple at a distance of about 1 meter.
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Unit
If a force of 5 newtons is applied to an object and it moves 2 meters, the work will be 10 newton-meter. Newton meter in termed and Joules and it is the unit of Work.
Example:
Calculate the Work for the given details of an object.
Force (F) = 15 N
Displacement (D) = 10 m
Angle () = 0
Solution:
Apply Work done Formula:
W = Fd Cos
W = 15*10*1
W = 150 J
Work (W) = 150 Joules