Dear colleagues, please help me to animate a pendulum motion, L i s the length of the pendulum,  the differential equation is:

de := diff(theta(t), `$`(t, 2))+c*(diff(theta(t), t))+9.8*sin(theta(t))/L = 0; c := 2; L := 2;
init := theta(0) = 0, (D(theta))(0) = 0;
sol := dsolve({de, init}, theta(t), numeric);

Dear colleagues, i am new in Maple. I am solving a system of four differential equations.I need :

1) to plot the second derivative of the theta[1]. I can plot the theta[1] and its first derivative;

2)to plot V40:

Thanks in advance:)

The code is: