If the ice on the polar cap of the earth melts how will it effectthe d

1.	If the ice on the polar cap of the earth melts how will it effectthe duration of the day?
Answer» SOLUTION :As no external torque works, L = I`omega` = I`((2pi)/T)` = constant. Whenice melts the mass CONCENTRATED near the axis of rotation (polar axis) sperads, thereby INCREASING MI of the earth. Hence, T also increases, i.e., the DURATION of the day increases.

Discussion