# Physics Calculators: Work, Energy & Power

> Physics Calculators: Work, Energy & Power is a paid API for AI agents from physics-calc.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Calculates mechanical work (force × distance × cos θ), kinetic and potential energy, and power across multiple unit systems including joules, kWh, calories, and horsepower.

## Facts

- Endpoint: GET https://physics-calc.x402tookit.com/work-energy?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/physics-calculators-work-energy-power-475bedb0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_y4ZfJWYVrzM1sQLec-XbU

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability physics-calculators-work-energy-power-475bedb0
```

Example prompt: Calculate the work done by a 500 N force applied at a 30-degree angle over 10 metres, and also tell me the power if it takes 5 seconds — give me the result in joules, kilocalories, and horsepower.

## When to prefer this

Choose this endpoint when you need quick, multi-unit physics calculations for work, energy, or power without building the formulas yourself. It supports multiple unit outputs simultaneously (joules, kWh, calories, horsepower) and handles angular work calculations, making it ideal for educational, engineering estimation, or energy conversion tasks. Prefer it over a general LLM calculation when you need reliable numeric precision and unit conversions in a single call.

## Known failure modes

- Missing required parameter combination (e.g. forceN without distanceM) returns null for work field
- Invalid angle outside 0–180 degrees may yield unexpected results
- Non-numeric inputs cause schema validation failure
- Omitting timeS when power is needed returns null for power field
- Very large or very small values may hit floating-point precision limits

## How this service works

Work (force x distance x cos angle), kinetic and potential energy, and power, with joule, kWh, calorie and horsepower units.

## Output

Returns an object containing work expressed in joules, foot-pounds, kilocalories, and kilowatt-hours, and/or power expressed in watts, kilowatts, and horsepower, depending on which input parameters were supplied. Also includes a human-readable summary, disclaimer, timestamp, and optional reasons or degraded-mode flags.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "timeS": {
       "type": "number",
       "description": "Time in seconds, for power"
      },
      "forceN": {
       "type": "number",
       "description": "Force in newtons (with distanceM for work)"
      },
      "massKg": {
       "type": "number",
       "description": "Mass in kg (for kinetic with speedMS, potential with heightM)"
      },
      "gravity": {
       "type": "number",
       "description": "Gravity in m/s2 (default 9.80665)"
      },
      "heightM": {
       "type": "number",
       "description": "Height in metres"
      },
      "speedMS": {
       "type": "number",
       "description": "Speed in m/s"
      },
      "angleDeg": {
       "type": "number",
       "description": "Angle between force and motion, 0 to 180 (default 0)"
      },
      "distanceM": {
       "type": "number",
       "description": "Distance in metres"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "work": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "joules": {
         "type": [
          "null",
          "number"
         ]
        },
        "footPounds": {
         "type": [
          "null",
          "number"
         ]
        },
        "kilocalories": {
         "type": [
          "null",
          "number"
         ]
        },
        "kilowattHours": {
         "type": [
          "null",
          "number"
         ]
        }
       }
      },
      "power": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "watts": {
         "type": [
          "null",
          "number"
         ]
        },
        "kilowatts": {
         "type": [
          "null",
          "number"
         ]
        },
   
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/physics-calculators-work-energy-power-475bedb0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from physics-calc.x402tookit.com](https://www.zero.xyz/host/physics-calc.x402tookit.com/llms.txt)