Question

Problem 4

For this question, you will write a program called drive.py that determines if a car should go through an intersection or stop. Your program will prompt the user for the colour of the traffic light at the intersection (a string), the distance to the intersection in meters (a float), and the speed of the car in meters per second (a float). Your program must then determine if the car should go through the intersection or stop.

The following rules should govern the car’s decision:

1. “Go” when the light is “green”

2. When the light is “yellow”, “Go” if the car will reach the intersection within 5 seconds. Otherwise, the car must “Stop”

3. When the light is “red”, “Go” if the car will reach the intersection in 2 seconds. Otherwise, the car must “Stop”

4. If the light is any color other than “green”, “red”, or “yellow”, the car must “Stop”

Hint: you can use the programming example done is class as the starting point.

use python

Answer 1

If you have any doubts please comment below. Please give upvote if you like this.

Python Code : drive.py

# Reading input from user
colour = input("Colour of the traffic light at the intersection: ")
dist = float(input("The distance to the intersection in meters: "))
speed = float(input("The speed of the car in meters per second: "))

# Calculate time using dist and speed
# Time = distance/speed
time = dist/speed
# Check the condition of colours
if colour == "green": # It satisfies condition print below statement
print("Car should go through an intersection")
elif colour == "yellow":
if time <= 5: # It satisfies condition print below statement
print("Car should go through an intersection")
else:
print("The car must stop")
elif colour == "red":
if time <= 2:# It satisfies condition print below statement
print("Car should go through an intersection")
else:
print("The car must stop")
# condition for If colour other than “green”, “red”, or “yellow”
else:
print("The car must stop")

- drive.py - C:\Users\Vinu Bujji\Desktop\drive.py (3.7.3) File Edit Format Run Options Window Help # Reading input from user colour = input ("Colour of the traffic light at the intersection: ") dist = float(input("The distance to the intersection in meters: ")) speed = float (input("The speed of the car in meters per second: ")) # Calculate time using dist and speed # Time = distance/speed time = dist/speed # Check the condition of colours if colour == "green": # It satisfies condition print below statement print("Car should go through an intersection") elif colour == "yellow": if time <= 5: # It satisfies condition print below statement print("Car should go through an intersection") else: print("The car must stop") elif colour == "red": if time <= 2:# It satisfies condition print below statement print("Car should go through an intersection") else: print("The car must stop") # condition for If colour other than "green", "red", or "yellow" else: print("The car must stop")||

Python 3.7.3 Shell х File Edit Shell Debug Options Window Help Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 21:26:53) [MSC v.1916 32 bit (Inte 1)] on win32 Type "help", "copyright", "credits" or "license()" for more information. == RESTART: C:\Users\Vinu Bujji\Desktop\drive.py - Colour of the traffic light at the intersection: green The distance to the intersection in meters: 6 The speed of the car in meters per second: 2 Car should go through an intersection -- RESTART: C:\Users\Vinu Bujji\Desktop\drive.py --- Colour of the traffic light at the intersection: yellow The distance to the intersection in meters: 12 The speed of the car in meters per second: 2 The car must stop -- RESTART: C:\Users\Vinu Bujji\Desktop\drive.py ----- Colour of the traffic light at the intersection: red The distance to the intersection in meters: 2 The speed of the car in meters per second: 2 Car should go through an intersection ========= RESTART: C:\Users\Vinu Bujji\Desktop\drive.py ==== Colour of the traffic light at the intersection: pink The distance to the intersection in meters: 32 The speed of the car in meters per second: 5 The car must stop >>>