Question

Matlab Code:

You will have to read in firing inputs from a user (angle and power). Prior to doing this, you should report out to the user via the command window the current wind speed and direction. For the value of wind speed, you can use a random number with magnitude range from -25 to 25 mph where -25 is wind blowing toward the left and +25 is wind blowing to the right. Note you can generate a random number between -25 to +25 by first multiplying rand by 50 then subtracting 25 from the result. To assign direction, you might want to just alternate left and right each turn. You will also want to read in power and angle from the user where angle is the firing angle from 0 to 90 degrees:

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Wind Speed (mph, plus to right, minus to left): -10

Enter Firing Angle (0 to 90 deg from horizontal: 30

Enter Firing Power (0 to 100): 30

Enter Cannon Ball Mass (kg): 5

Answer 1

MATLAB CODE

% clearing any past varibles and screen clc clear %report out to the user via the command window the current wind speed and direction %range is allowed from -25 to 25 mph %-ve is for left and +ive for right %For this (as hinted in question) we use random value generation %Generate number between [0,50] then subtract 25 to get the value in the desired range of [-25, 25] Another way is to generate random number between [0 ,25] for magnitude and %alternate between the sign for left and right (also mentioned in the question ( IN this we will use first method) %randi function generates number between specified by first parameter %second parameter tells to generate 1 number wind_speed = randi ([0, 50], 1); 17 - %subtract 25 to get in range wind_speed = wind_speed - 25; 23 - 24 - %report to the user X = sprintf('Wind Speed (mph, plus to right, minus to left): %d', wind_speed); disp(X) %Ask user Firing Angle firing_angle = input('Enter Firing Angle (0 to 90 deg from horizontal): '); 27 - %Ask user Firing Power firing_power = input ('Enter Firing Power (0 to 100):'); 30 - %Ask user Cannon Ball Mass cannonball_mass = input ("Enter Cannon Ball Mass (kg): '); 34 -

CODE TEXT

% clearing any past varibles and screen

clc

clear

%report out to the user via the command window the current wind speed and direction

%range is allowed from -25 to 25 mph

%-ve is for left and +ive for right

%For this (as hinted in question) we use random value generation

%Generate number between [0 , 50] then subtract 25 to get the value in the desired range of [-25, 25]

%Another way is to generate random number between [0 ,25] for magnitude and

%alternate between the sign for left and right (also mentioned in the

%question ( IN this we will use first method)

%randi function generates number between specified by first parameter

%second parameter tells to generate 1 number

wind_speed = randi ([0 , 50], 1);

%subtract 25 to get in range

wind_speed = wind_speed - 25;

%report to the user

X = sprintf('Wind Speed (mph, plus to right, minus to left): %d', wind_speed);

disp(X)

%Ask user Firing Angle

firing_angle = input('Enter Firing Angle (0 to 90 deg from horizontal):');

%Ask user Firing Power

firing_power = input ('Enter Firing Power (0 to 100):');

%Ask user Cannon Ball Mass

cannonball_mass = input ('Enter Cannon Ball Mass (kg): ');

OUTPUT

Wind Speed (mph, plus to right, minus to left): -10 Enter Firing Angle (0 to 90 deg from horizontal: 30 Enter Firing Power (0 to 100): 30 Enter Cannon Ball Mass (kg): 5

Please comment for any further assistance