Problem 2. Analytically, find the velocity for the mass in the system.

In PSpice, start with schematics.

Escape is useful to get out of a certain function and back to the select (normal mouse) function.

Ctrl-r rotates circuit elements!

One necessary trick - Spice does a dc analysis first, so an inductor driven by a voltage source must have a small resistance in series so the dc current is not infinite. (same for a capacitor driven by a voltage source, but then r is in parallel with C).

Note that the help function is very useful in leading you through the analysis.

After you do the analysis, use probe to plot results by adding a trace. Here, I used I(L1); remember current corresponds to velocity.

I ran the ac analysis from 0.1 to 1 Hz and the transient analysis for 3 seconds.

Use an effort source (force/voltage) to drive the circuit.

To draw a circuit, use schematics. Open the part browser (the binocular icon, or under draw -> get new part) and place the parts. Draw wires between the parts. When drawing the circuit, you must add a ground connection before Spice will analyze the circuit. I used earth ground.

Problem 5. You will want to do an ac analysis across the appropriate frequency range here.