2. [15 marks] A student wants to develop a program that will help solve various physics problems. Create a library of functions (header file and source file) that can be used to calculate the following quantities: a) 1Sin 9 a function that returns the sine of an angle 9 given in degrees, . b) Momentum functions that returns the x and y components of the momentum of an object, given the mass and velocity (magnitude and angle in degrees). c) Kinetic Energy a function that returns the kinetic energy of an object, given the mass and speed. d) Gravitational potential a function that returns the gravitational potential energy of an object, given the mass and height above the ground. 1 The standard C library, ma th.h, already contains the functions for sin, cos and tan, however, these functions require the angle to be given in radians, double sin (double X), where x is the angle in radians. You are allowed to use these functions from the math . h library to help define your degree-based trigonometric functions. Make sure you use function and variable names that enhance readability. Remember to add any necessary #include directives. Add comments to describe your files and functions. Try to create efficient code. Note, your file should NOT have any printf () or main () in your source code