Question

An engineer has derived a relationship between the force applied to a material and the extension in length that the force would cause. The relationship between force f and extension e is given by: e = { 5.5f if 0 < f < 10 f2 – 10f + 55 if 10 < f < 20 The aim of this task is to specify a list of values which are the values of force f that you will be using for plotting. These values are to be stored in a Python list called force list. We impose these requirements on force list: • The first entry for force list is 0. • The entries in force list are all integral multiples of a parameter called step size. • The last entry must be less than or equal to 20, which is the upper limit for the force. • The difference between the last entry in force list and 20 must be strictly less than step size. This is so that we make full use of the range off. Based on these requirements, the force list for a number of different sizes are: If step_size = 0.4, then force list should be [0, 0.4,0.8, 1.2, ...,19.6,20] which contains 51 values If step_size = 0.5, then force list should be [0, 0.5, 1.0, 1.5, ...,19.5,20] which contains 41 values If step_size = 0.7, then force list should be [0,0.7, 1.4, 2.1, ... ,17.5,18.2,18.9,19.6] which contains 29 values If step_size = 0.9, then force list should be [0,0.9, 1.8, 2.7, ...,18.0,18.9,19.8] which contains 23 values We want to make the program flexible so that it can automatically generate force list from a given value of step size. This flexibility will allow us to try out different values of step size. You may think this is complicated but we want to say that it is doable and we will give you some hints in one moment. We want to use this exercise to show you that with a bit of thinking, you can make your programs flexible.

Using Python programming language to solve this thanks!!!

Answer 1

code :

*ok.py - C:/Python/Python37/ok.py (3.7.7)* File Edit Format Run Options Window Help step = float (input('step_size : ')) #taking step-size as input force_list [] #creating empty list i 0 #first value while(i<=20): force_list.append(i) i += step i = round (i,1) #appending all values #printing force_list print (force_list)

output :

RESTARI. Eycпor. FYLho = step size : 0.4 [0, 0.4, 0.8, 1.2, 1.6, 2.0, 2.4, 2.8, 3.2, 3.6, 4.0, 4.4, 4.8, 5.2, 5.6, 6.0, 6.4, 6.8, 7.2, 7.6, 8.0, 8.4, 8.8, 9.2, 9.6, 10.0, 10.4, 10.8, 11.2, 11.6, 12.0 12.4, 12.8, 13.2, 13.6, 14.0, 14.4, 14.8, 15.2, 15.6, 16.0, 16.4, 16.8, 17.2, 17.6, 18.0, 18.4, 18.8, 19.2, 19.6, 20.0] >>> == RESTART: C:/Python/Python37/ok.py = step_size : 0.5 [0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0, 5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 14.5, 15.0, 15.5, 16.0, 16.5, 17.0, 17.5, 18.0, 18.5, 19.0, 19.5, 20.0]

raw_code :

step = float(input('step_size : ')) #taking step-size as input

force_list = [] #creating empty list

i = 0 #first value

while(i<=20):
force_list.append(i) #appending all values
i += step
i = round(i,1)

#printing force_list
print(force_list)

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