Translational Kinetic Energy
Compute translational kinetic energy E from mass m and speed v.
Inputs
Formula
E = ½·m·v²
Vehicle crash energy scales with translational KE.
Fundamentals
Compute translational kinetic energy E from mass m and speed v.
This tool computes Translational Kinetic Energy from the formula: E = ½·m·v²
History
Classical mechanics founded by Newton; kinematics formulas remain the basis of mechanical and vehicle design.
Engineering applications
Used for mechanism kinematics, energy calculations and balancing.
Glossary
| Mass m | Input parameter |
| Speed v | Input parameter |
| Kinetic energy E | Output result |
How to use
- Fill in Mass m, Speed v in the Inputs section (watch the unit on each field).
- Click Calculate; the tool evaluates the formula shown above.
- Read Kinetic energy E in the results area.
Formula · Worked Example · Knowledge
Formula
核心计算关系：E = ½·m·v²
输入变量：
- Mass m
m— kg - Speed v
v— m/s
输出结果：
- Kinetic energy E
E— J
假设/适用：Kinematic formulas assume rigid bodies, ignoring friction & elasticity; add losses for dynamics.
Worked Example
根据公式 E = ½·m·v²，取 Mass m = 1,000 kg；Speed v = 20 m/s。
代入计算得：Kinetic energy E = 200,000 J。
Key Points
- Kinematic formulas assume rigid bodies, ignoring friction & elasticity; add losses for dynamics.
- Use SI units (kg, m, s, rad) to avoid conversion errors.
- Angular and linear quantities relate by radius r: v = ω·r, a = α·r.
Parameters
Inputs
| Parameter | Symbol | Unit | Default |
|---|---|---|---|
| Mass m (kg) | m | kg | 1000 |
| Speed v (m/s) | v | m/s | 20 |
Outputs
| Result | Symbol | Unit |
|---|---|---|
| Kinetic energy E | E | J |
Applications
- Linkage and cam kinematics design
- Pulley mechanical-advantage study
- Engine valve-train and crank analysis
FAQ
What formula does this tool use?
This tool computes per ISO / AGMA / ASME standard formulas: E = ½·m·v²
How accurate are the results?
Results match input precision, based on SI units and common engineering approximations; for critical duty re-check with a safety factor.
Where is it used?
Linkage and cam kinematics design