f(t)=A[u(t)-u(t-10)], where u(t) is the unit step function. Is the energy of this signal finite? Why or why not? If it exists, find the energy of this signal.

Answer 1

the funcion is zero till time 0, becomes A, then at time 10, it becomes zero again.

the area in the curve is 10A, I am not certain how that relates to energy, it depends on what A is.

Answer 2

The Energy formula is (f(t))^2 dt over the integral from t2 to t1. However, I don't know how to utilize it in this case.