Question

MATLAB

s are applied 26. The braking distance of a car depends on its speed as the brakes are appiet and on the car's braking efficiency. A formula for the braking distance is s2 ba_2Rg where ba is the braking distance, s is the car's speed, R is the braking efficiency, and g is the acceleration due to gravity 19.81).A script has been written that calls a function to prompt the user for s and R, calls another function to calculate the braking distance and calls a third function to print the braking distance in a sentence format with one decimal place. You are to write a function stub for the function that prompts for s and R and the actual function definitions for the other two functions. [s, R] = promptSandR ; brakDi st = calcbd (S, R) ; printbd (brakDist)

Answer 1

Code:

promptSandR.m file

function [s,R] = promptSandR()
%asking the user to enter the s and R values
s = input('Enter speed of car(s): ');
R = input('Enter braking effeciency of car(R):');

end

calcbd.m file

function brakDist = calcbd(s, R)
g = 9.81;%gravitation due to gravity
brakDist = (s.^2)/(2*R*g);%formula to calculate breaking distance
end

printbd.m file

function [] = printbd(brakDist)
%printing the breaking distance
disp('\nBreaking Distance is: ');
disp(brakDist);
end

test.m file

[s, R] = promptSandR;
brakDist = calcbd(s,R);
printbd(brakDist);

Output:

Enter speed of car(s): 65
Enter braking effeciency of car(R):0.8

Breaking Distance is:
269.1769