Question

Please solve by using MATLAB, show all the steps

Problem 2
An object propelled directly upward with an initial velocity of 50 m/s has a velocity given by
v= - 9.8t + 50
In this case, the positive direction of velocity is upward.
a) Plot a curve of the velocity as a function of time from t=0 to t=8 s.
b) Keep the default horizontal and vertical scales.
c) Provide labeling for the two axes and provide a title.
d) Use Insert Line function within Figure Window to add abscissa across the the graph corresponding
to velocity of zero.
e) Add a grid.
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Answer 1

clc;clear all;close all;
t=0:0.01:8;%time range
v=-9.8*t+50;%velocity time fuction
plot(t,v,'b')
xlabel('time in sec')
ylabel('velocity in m/sec')
title('velocity Vs time')
t1=50/9.8;%to find when the velocity become zero
line([0,t1],[0,0],'color','r')
grid on

velocity Vs time 50 40 30 10 -10 -20 -30 7 5 6 4 3 2 1 time in seC LC C 20 velocity in m/sec