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Momentum from Energy Calculator Formula

Momentum Formula:

\[ p = \sqrt{2 \times m \times E} \]

kg
J
kg·m/s

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1. What is Momentum from Energy Calculator?

Definition: This calculator computes the momentum of an object based on its mass and kinetic energy using the physics formula.

Purpose: It helps students, physicists, and engineers determine an object's momentum when its mass and kinetic energy are known.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ p = \sqrt{2 \times m \times E} \]

Where:

Explanation: The formula derives from the relationship between kinetic energy and momentum in classical mechanics.

3. Importance of Momentum Calculation

Details: Momentum is a fundamental concept in physics that describes the quantity of motion an object has and is conserved in closed systems.

4. Using the Calculator

Tips: Enter the mass in kilograms and kinetic energy in joules. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the units of momentum?
A: Momentum is measured in kilogram-meters per second (kg·m/s).

Q2: Can this formula be used for relativistic speeds?
A: No, this formula is for classical mechanics. For relativistic speeds, you need to use the relativistic momentum formula.

Q3: What's the relationship between momentum and kinetic energy?
A: Kinetic energy can be expressed in terms of momentum as \( E = \frac{p^2}{2m} \), which is why we can calculate momentum from energy.

Q4: Does this work for all types of energy?
A: No, this specifically calculates momentum from kinetic energy. Other forms of energy require different calculations.

Q5: What if my object has zero mass?
A: This formula doesn't apply to massless particles (like photons), which have momentum but no rest mass.

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