The work-energy theorem states that the change in

Options

A. kinetic energy of a particle is equal to the work done on it by the net force
B. kinetic energy of a particle is equal to the work done by one of the forces acting on it
C. potential energy of a particle is equal to the work done on it by the net force
D. potential energy of a particle is equal to the work done by one of the forces acting on it

Explanation

To solve the question regarding the work-energy theorem, we need to define what the theorem states. Here's a step-by-step breakdown:

### Step 1: Understand the Work-Energy Theorem
The work-energy theorem is a fundamental principle in physics that relates the work done on an object to its kinetic energy.

### Step 2: Define the Work-Energy Theorem
The theorem states that the change in kinetic energy of an object is equal to the net work done on it by the forces acting on it.

### Step 3: Write the Mathematical Expression
Mathematically, the work-energy theorem can be expressed as:
\[ W = \Delta KE \]
where:
- \( W \) is the work done on the object,
- \( \Delta KE \) is the change in kinetic energy, defined as \( KE_{final} - KE_{initial} \).

### Step 4: Identify the Correct Option
Given the options, the correct statement according to the work-energy theorem is that the change in kinetic energy is equal to the work done on the body by the net force acting on it.

### Conclusion
Thus, the answer to the question is that the work-energy theorem states that the change in kinetic energy is equal to the work done on a body.

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