The current through a wire depends on time as i = (2 + 3t)A. Calculate the charge through a cross section of the wire in first 10 sec.

Explanation

Making use of the result obtained in the previous example, distance OC of the mass center form the center is `OC = (r sin (pi//4))/(pi//4) = (2sqrt2r)/(pi)`
Coordinates of the mass center `(x_c, y_c) are ((2r)/pi,(2r)/pi)`