Correct Input: Run Spng2 Wrong; Input 1 Correct; Run Spng3 I

Correct Input Runspng2wrong Input 1correct Runspng3incorrect Input F

Assignment objectives: · User Defined Functions Write a program to calculate the trajectory of a cannon ball (we use a watermelon). The program must ask the user for the initial velocity and initial trajectory angle then ask the user what they want to calculate, Time of flight or Max. height or horizontal range. Calculate what user wants and display it. Formulas: User input: The initial velocity valid rage is 10 to 1000 m/s The initial angle valid range is 1 to 89 degrees Requirement Must implement functions for each of the followings: 1. Calculating peak height. Must not print the result in the function 2. Calculating max range. Must not print the result in the function 3. Calculating travel time. Must not print the result in the function 4. Check for valid input from the user and give the user chance to reenter the data 3 times, after 3 incorrect tries give user a notice and exit the program. You can do some print statements in this function depending on how you design your code. General requirement 1- Following comments must be the first lines of your source code / ----------------------------------------------- Submitted By: Homework Number: Credit to: Submitted On: By submitting this program with my name, I affirm that the creation and modification of this program is primarily my own work. ------------------------------------------------ / 2- Next few line of your source code must be comments describing what this program is supposed to do. 3- The first output (display) must be your name 4- The source code file must include comments documenting the design. 5- Indentation and spacing should be used to make the program readable. Deliverables: No hard copy is needed; submit the soft copy of your source code (the .c file) to blackboard IMPORTANT: You must name your source code as below: Yourusername_homeworknumber_cs223

Paper For Above instruction

The programmed task requires developing a C application that computes the trajectory parameters of a projectile—specifically modeled as a watermelon in this context. The primary functions of this program involve prompting the user to input the initial velocity and launch angle, validating these inputs, and then calculating either the time of flight, maximum height, or horizontal range based on user selection. To achieve modularity, dedicated functions are implemented for each calculation, ensuring they do not directly output results, adhering to good programming practices. Comprehensive input validation is crucial, allowing users three attempts to reenter correct data before terminating the program with appropriate messaging.

The initial part of the C program includes a specially formatted comment block containing submission metadata, followed by comments describing the program's purpose, thereby enhancing code maintainability and documentation. The program commences by displaying the author’s name as the first output, establishing clear identification. The core logic involves gathering user inputs, validating them within specified ranges (initial velocity between 10–1000 m/s and launch angle from 1–89 degrees), and providing reentry opportunities upon invalid attempts. Once valid data are obtained, the program calculates the requested parameter based on classical physics formulas:

• Maximum Height: \(\text{H}_{max} = \frac{(V_0 \sin \theta)^2}{2g}\)
• Horizontal Range: \(\text{R} = \frac{V_0^2 \sin 2\theta}{g}\)
• Time of Flight: \(\text{T} = \frac{2V_0 \sin \theta}{g}\)

Here, \(V_0\) is the initial velocity, \(\theta\) is the launch angle (converted to radians), and \(g\) is the acceleration due to gravity (~9.81 m/s²). The program solicits user input for the desired calculation and calls the respective functions to perform these physics calculations, ensuring results are stored and returned without direct printing within each calculation function.

Input validation is handled through loops that permit up to three reentry attempts. If all attempts fail, a message is displayed, and the program terminates gracefully. Additional comments within the source code clarify the program design, enhancing readability and maintainability. Proper indentation and spacing are maintained throughout the code for clarity. The program ends with a submission instruction to submit the source file with an appropriate filename pattern, e.g., yourusername_homeworknumber_cs223.

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