14. To write a python program simulate bouncing ball in Pygame.

 import pygame

# Set up the Pygame window

WIDTH, HEIGHT = 800, 600

FPS = 60

pygame.init()

screen = pygame.display.set_mode((WIDTH, HEIGHT))

pygame.display.set_caption("Bouncing Ball")

clock = pygame.time.Clock()

# Set up the ball

BALL_RADIUS = 30

ball_pos = [WIDTH // 2, HEIGHT // 2]

ball_vel = [4, 0]

# Main game loop

running = True

while running:

    # Handle events

    for event in pygame.event.get():

        if event.type == pygame.QUIT:

            running = False

    # Move the ball

    ball_pos[0] += ball_vel[0]

    ball_pos[1] += ball_vel[1]

    # Bounce off the walls

    if ball_pos[0] < BALL_RADIUS or ball_pos[0] > WIDTH - BALL_RADIUS:

        ball_vel[0] = -ball_vel[0]

    if ball_pos[1] < BALL_RADIUS or ball_pos[1] > HEIGHT - BALL_RADIUS:

        ball_vel[1] = -ball_vel[1]

    # Clear the screen and draw the ball

    screen.fill((255, 255, 255))

    pygame.draw.circle(screen, (255, 0, 0), ball_pos, BALL_RADIUS)

    # Update the display

    pygame.display.flip()

    # Wait for the next frame

    clock.tick(FPS)

# Clean up

pygame.quit()