Physics

Problem

A pendulum of length

1.2\,\text{m}

is pulled sideways so that the bob is

3.0\,\text{cm}

horizontally from its equilibrium position. Under the small-angle approximation, what is the bob’s angular displacement in degrees? a)

2.5^{\circ}

1.4^{\circ}

12.9^{\circ}

0.025^{\circ}