write using python. follow all instructions as said.

Speed of a Falling Object The equation to calculate the speed of a falling object is as follows. v=u+g*t 10 points To determine the velocity, v, of a falling object, we consider the initial velocity, u, and the length of time [in seconds] in which it has been falling, t. The force of gravity causes objects to fall towards the Earth's surface with a constant acceleration of 9.8 meters per second squared. Write a function, defined as v, which returns the equation from above and accepts the three parameters below: 1. The initial velocity as u 2. Time in seconds as t 3. The acceleration due to gravity as g Let g default to the acceleration due to gravity. [Hint: Consider the direction of gravity] Finally, determine the velocity of a falling object given an initial upward velocity of 20 meters per second and if the object has been in free-fall for 15 seconds. Store this value as falling_velocity.