The Time $t$ For the Swing of a Simple Pendulum Varies Directly as Varies

Short Answer

The time $t$ for the swing of a simple pendulum varies directly as the square root of the length $L$ . If the time of the swing is $1.5 \mathrm{~s}$ when the length is $8 \mathrm{~cm}$ , find the time of the swing when the length of the pendulum is $1.2 \mathrm{~cm}$ .