1 Answer
**Work Energy** is a concept in physics that explains how work and energy are related to each other.
1. **Work**: Work is done when a force is applied to an object, and the object moves in the direction of the applied force. Mathematically,
\[
W = F \cdot d \cdot \cos\theta
\]
where:
- \( W \) = Work done (Joules)
- \( F \) = Applied force (Newtons)
- \( d \) = Displacement (meters)
- \( \theta \) = Angle between force and displacement
2. **Energy**: Energy is the capacity to do work. It exists in different forms, such as kinetic energy, potential energy, thermal energy, etc.
3. **Work-Energy Theorem**: This theorem states that the work done on an object is equal to the change in its kinetic energy:
\[
W = \Delta KE = KE_{\text{final}} - KE_{\text{initial}}
\]
This means that when work is done on an object, its energy changes—either increasing (if work is positive) or decreasing (if work is negative).
1. **Work**: Work is done when a force is applied to an object, and the object moves in the direction of the applied force. Mathematically,
\[
W = F \cdot d \cdot \cos\theta
\]
where:
- \( W \) = Work done (Joules)
- \( F \) = Applied force (Newtons)
- \( d \) = Displacement (meters)
- \( \theta \) = Angle between force and displacement
2. **Energy**: Energy is the capacity to do work. It exists in different forms, such as kinetic energy, potential energy, thermal energy, etc.
3. **Work-Energy Theorem**: This theorem states that the work done on an object is equal to the change in its kinetic energy:
\[
W = \Delta KE = KE_{\text{final}} - KE_{\text{initial}}
\]
This means that when work is done on an object, its energy changes—either increasing (if work is positive) or decreasing (if work is negative).