MATLAB

Hello, I need to plot a piecewise function using MATLAB:

m=60; g=32.2; k1=11; k2=110;

So basically, I need to plot both equations in the same graph for and

These are my equations in case you need:

V1=((m*g)/k_1)*(exp(((-k_1*t1)/m)-1));

V2=((m*g)/k_1)*(exp(((-k_2*(t2))/m)))*(exp((-k_1*t2)/m)-1)+((m*g)/k_2)*(exp(((-k_2*(t2))/m)-1));

v(t)={k1mg(ek1t/m1),k1mgek2(ttd)/m(ek1td/m1)+k2mg(ek2(ttd)/m1),0t