Distance Converter

In this lab, you will create a Python function named convert_distance() to convert distances between kilometers and meters. Your function should take two parameters: distance (a floating-point number) and unit (a string that can either be "km" for kilometers or "mtr" for meters). The function should return a tuple with the converted distance as a floating-point value and the corresponding unit.

Function Requirements:

• Input Parameters:
  • distance: A floating-point number representing the distance.
  • unit: A string, either "km" or "mtr".
• Output:
  • A tuple: The first element is the converted distance as a float, and the second element is the unit of the converted distance (either "km" or "mtr").

Your function should raise an ValueError when a negative number is passed or when a different unit is passed to the function.

If you're not familiar with ValueError you can read this doc.

If you're faimilar with raising Exceptions, check this pargraph

Examples:

1. Converting Kilometers to Meters:

   • Input: distance = 1.5, unit = "km"
   • Output: (1500.0, "mtr")
   • This means when you pass 1.5 kilometers to the function, it should return 1500.0 meters.

2. Converting Meters to Kilometers:

   • Input: distance = 3000, unit = "mtr"
   • Output: (3.0, "km")
   • Here, 3000 meters is converted to 3.0 kilometers.

Remember, your function should also handle edge cases, such as inputting a zero or negative distance, and should behave accordingly as specified in the challenges.