Learn Encapsulation by Building a Projectile Trajectory Calculator - Step 5

Python
1

Tell us what’s happening:

Projectile(45, 45, 45) it showing this error. give me any hint to figure it out.

Your code so far

import math

GRAVITATIONAL_ACCELERATION = 9.81
PROJECTILE = "∙"
x_axis_tick = "T"
y_axis_tick = "⊣"

class Projectile:
    __slots__ = ('__speed', '__height', '__angle')

    def __init__(self, speed, height, angle):
        self.__speed = speed
        self.__height = height
        self.__angle = math.radians(angle)


    def __calculate_displacement(self):
        horizontal_component = self.__speed * math.cos(self.__angle)
        vertical_component = self.__speed * math.sin(self.__angle)
        squared_component = vertical_component**2
        gh_component = 2 * GRAVITATIONAL_ACCELERATION * self.__height
        sqrt_component = math.sqrt(squared_component + gh_component)
        
        return horizontal_component * (vertical_component + sqrt_component) / GRAVITATIONAL_ACCELERATION
        

# User Editable Region

ball = Projectile(10, 3, 45)
def __str__(self):
    return f'''
Projectile details:
speed: {self.__speed} m/s
height: {self.__height} m
angle: {int(math.degrees(self.__angle))}°
displacement: {round(self.__calculate_displacement(), 1)} m
'''
print(ball)

# User Editable Region

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Challenge Information:

Learn Encapsulation by Building a Projectile Trajectory Calculator - Step 5

2

What error are you getting?

Can you share your output?

3

Your function should be in the class.

4

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