curl --request POST \
  --url https://api.iotools.cloud/v1/tool/momentum-calculator \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "solveFor": "momentum",
  "momentum": "20",
  "momentumUnit": "kgms",
  "mass": "10",
  "massUnit": "kg",
  "velocity": "2",
  "velocityUnit": "ms"
}
'

{
  "tool": "momentum-calculator",
  "tool_version": "1.0.2",
  "outputs": {
    "results": [
      {
        "quantity": "Momentum",
        "value": "20 kg·m/s (kilogram-meters per second)",
        "other-units": "2000000 g·cm/s (gram-centimeters per second) · 144.66 lb·ft/s (pound-feet per second) · 4.49618 slug·ft/s · 20 N·s (newton-seconds)"
      },
      {
        "quantity": "Mass",
        "value": "10 kg (kilograms)",
        "other-units": "10000 g (grams) · 10000000 mg (milligrams) · 22.0462 lb (pounds) · 352.74 oz (ounces) · 0.01 t (metric tons) · 0.0110231 US ton (short ton)"
      },
      {
        "quantity": "Velocity",
        "value": "2 m/s (meters per second)",
        "other-units": "7.2 km/h (kilometers per hour) · 4.47387 mph (miles per hour) · 6.56168 ft/s (feet per second) · 3.88769 knot (nautical miles per hour)"
      }
    ],
    "breakdown": "Solving for: Momentum\nmomentum = mass × velocity\nmomentum = 20 kg·m/s\nmass = 10 kg\nvelocity = 2 m/s"
  },
  "credits_used": 5,
  "credits_remaining": null
}