Question

Height of an object (h) which is thrown vertically with the speed of V0 at each time (t) can be calculated by the following formula:

In a scripts create an anonymous function to calculate h at each time t for the value of g=9.81 m/s2 and V0 = 65 m/s. Also plot the height versus time and use fzero to determine the time when the object hits the ground.

Answer 1

Answer: Heightfun.m function [h]= heightfun (time) vo 65.0 g 9.81; h-vo*time-0.5*g*ti end hits.m clear disp' Grount hit value) n 1000 timealinspace (0,11, n) h-heightfun (time); plot (time,h),xlabel ('time t (sec)),ylabel ('height (m) ) title(' calculate height at each time),grid on hits val-fzero(@heightfun, 10) steps to execute: run the heightfun.m

Command Window >> heightfun (6) 213.4200 now execute hits.m Command Window Grount hit value hits val- 13.2518

Figure 1 File Edit View Insert Tools Desktop Window Help 自ㄐ calculate height at each time 250 200 150 100 50 ..「 「 ㄒㄧ ㄒㄧ ㄒㄧㄧ-- 2 4 10 12 time t (sec)
copyable code:

Heightfun.m

function [h]= heightfun(time)

vo=65.0;

g=9.81;

h=vo*time-0.5*g*time.^2;

end

hits.m

clear

clc

disp('Grount hit value')

n=1000;

time=linspace(0,11,n);

h=heightfun(time);

plot(time,h),xlabel('time t (sec)'),ylabel ('height(m)')

title(' calculate height at each time'),grid on

hits_val=fzero(@heightfun,10)