Step1:

Circuit current is .

Find the voltage using waveform given.

Observe the graph:

Two points in the interval are (0, 2) and (5, 4).

Two points in the interval are (5, 4) and (10, 2).

Find the voltage in .

Slope = . 

Slope point form of the equation is .

Slope = 0.4 and the point is (0, 2).

Current in is .

Step 2:

Similarlly for .

Slope = .

Slope = -0.4 and the point is (5, 4).

Current in is .

Step 3 :

Current in is .

Current in is .

Step 1 :

Find circuit current .

Circuit current .

Current across resistor in is .

Current across capacitor in is .

Substitute and in circuit current.

.

Step 2 :

Current across resistor in  is .

Current across capacitor in  is .

Substitute and in circuit current.

Solution :