P13.3 A unit ramp r t( ) = > t t , 0, is used as an input to a process where G s( ) = + 1 1 ( ) s , as shown in Figure P13.3. Determine the output y(kT) for the first four sampling instants.

1*(1) r(1) G(s) y(t) FIGURE P13.3 Sampling system.