Problem statement

You are developing the physics engine for a 2D artillery game. When a player fires a projectile, the engine must calculate the total horizontal distance it will travel before hitting the ground.

The formula for projectile distance is:

where $v$ is velocity, $\theta$ is the angle in radians, and $g$ is gravity ($9.81$).

Task requirements

• Implement the physics formula to calculate the distance.

• Format the final distance by rounding it to exactly two decimal places.

• Print the calculated, rounded distance to the console.

Constraints

• You must add a using static directive to directly access the System.Math methods without typing the Math. prefix.

• You must encapsulate the physics formula inside a static local function.

• The local function must not capture variables from the parent scope; you must pass velocity and angleInRadians into it as parameters.

Good luck trying the exercise! If you’re unsure how to proceed, check the “Solution” tab above.

Get hints

• Place using static System.Math; at the very top of the file to call Pow() and Sin() directly.

• A static local function resides inside the top-level scope and uses the static keyword to guarantee data isolation.