clc
clear

A=[0 -7 6;
5 -4 3;
10 -1 9;
15 1 0;
20 2 -1];

t= A(:,1);
F1= A(:,2);
F2= A(:,3);

plot(t, F1, '-o', t, F2, '-s')
grid on

xlabel('Time (seconds)')
ylabel('Force (newtons')
legend('Column 2', 'Column 3')
title ('Force vs Time')