# Python code to solve equations of motion

# Constants
g = 9.81  # gravitational acceleration in m/s^2

# Function to solve equations of motion
def equations_of_motion(initial_velocity, time, acceleration, initial_position):
    # Final velocity
    final_velocity = initial_velocity + acceleration * time

    # Final position
    final_position = initial_position + initial_velocity * time + 0.5 * acceleration * time ** 2

    # Displacement
    displacement = final_position - initial_position

    return final_velocity, final_position, displacement

# Example usage
# Inputs
initial_velocity = 0.0  # initial velocity in m/s
time = 4.0  # time in seconds
acceleration = 9.81  # acceleration in m/s^2 (free fall)
initial_position = 0.0  # initial position in meters

# Solve equations of motion
final_velocity, final_position, displacement = equations_of_motion(initial_velocity, time, acceleration, initial_position)

# Output results
print("Final velocity:", final_velocity, "m/s")
print("Final position:", final_position, "m")
print("Displacement:", displacement, "m")