Practise Problem 3: In physics, an object that is in motion is said to have kinetic energy. The following formula can be used to determine a moving objects kinetic energy:

K = 1/2 mv2

The variables in the formula are as follows: K is the kinetic energy, m is the objects mass in kilograms, and v is the objects velocity, in meters per second. Write a function named kineticEnergy that accepts an objects mass (in kilograms) and velocity (in meters per second) as arguments. The function should return the amount of kinetic energy that the object has. Demonstrate the function by calling it in a program that asks the user to enter values for mass and velocity.