[" A simple pendulum of length "l" and having a bob of mass "M" is suspended in a car."],[" The car is moving on a circular track of radius "R" with a uniform speed "u" .If the "],[" pendulum makes small oscillations in a radial direction about its equilibrium "],[" position,what will be its time period? "],[" A cylindrical piece of cork of density of base area "A" and height "b" floats in a liguid of "]