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The SI unit for work and energy is the joule (J), where \(1 \, J = 1 \, N \cdot m = 1 \, kg \, m^2/s^2\). The work done by a force is zero if the displacement is either zero or perpendicular to the force. The work done is positive if the force and displacement have the same direction, and negative if they have opposite direction.
The SI unit for work and energy is the joule (J), where 1 J = 1 N ⋅ m = 1 kg ⋅ m 2 /s 2. The work done by a force is zero if the displacement is either zero or perpendicular to the force. The work done is positive if the force and displacement have the same direction, and negative if they have opposite direction.
The SI unit of work is the joule (J), named after English physicist James Prescott Joule (1818-1889), which is defined as the work required to exert a force of one newton through a displacement of one metre.
The joule (J) is the metric unit of measurement for both work and energy. The measurement of work and energy with the same unit reinforces the idea that work and energy are related and can be converted into one another. 1.0 J = 1.0 N∙m, the units of force multiplied by distance. 1.0 N = 1.0 kg∙m/s 2 , so 1.0 J = 1.0 kg∙m 2 /s 2 .
Calculating 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 1 J = 1 N ⋅ m = 1 kg ⋅ m 2 /s 2 1 J = 1 N ⋅ m = 1 kg ⋅ m 2 /s 2. One joule is not ...
Work is done whenever a force causes a displacement. When work is done, energy is transferred or transformed. The joule is the unit for both work and energy.
The SI unit for work and energy is the joule (J), where [latex]{1\text{ J}=1\text{ N}\cdotp\text{ m}=1\text{ kg}\cdotp\text{ m}^2/\text{s }^2}.[/latex] The work done by a force is zero if the displacement is either zero or perpendicular to the force.
