1. What is Net Force?

Net force is the vector sum of all forces acting on an object. It determines the object's acceleration according to Newton's second law of motion (F = m × a).

2. How Does the Calculator Work?

The calculator uses the net force equation:

Where:

• \( F_{\text{net}} \) — Net force (newtons)
• \( F_i \) — Individual forces acting on the object (newtons)
• \( \sum \) — Summation symbol indicating vector addition

Explanation: This calculator assumes all forces are acting along the same line. For forces in different directions, proper vector addition considering direction is required.

3. Importance of Net Force Calculation

Details: Calculating net force is fundamental in physics for predicting an object's motion. It's essential for solving problems in mechanics, engineering, and understanding everyday phenomena.

4. Using the Calculator

Tips: Enter forces as comma-separated values (e.g., "10, -5, 3.5"). Negative values indicate forces in the opposite direction. All values should be in newtons.

5. Frequently Asked Questions (FAQ)

Q1: What if forces are in different directions?
A: This calculator assumes one-dimensional motion. For 2D or 3D forces, vector components must be calculated separately for each direction.

Q2: How does net force relate to acceleration?
A: According to Newton's second law, acceleration equals net force divided by mass (a = F_net/m).

Q3: What is equilibrium in terms of net force?
A: When net force equals zero, the object is in equilibrium - either at rest or moving with constant velocity.

Q4: Can net force be negative?
A: Yes, negative net force indicates the resultant force is in the negative direction of your coordinate system.

Q5: How do I calculate net force for angled forces?
A: Resolve each force into its x and y components, then sum the components separately for each direction.