Answer:
Pendulum will swing by an angle 0.666π
Step-by-step explanation:
We have given arc = [tex]100\pi cm[/tex]
And length of the pendulum l = 150 cm
Length of the pendulum will be equal to radius of the pendulum so r = 150 cm
Arc is given by [tex]arc=radius\times angle[/tex]
So [tex]100\pi =150\times\times \Theta[/tex]
[tex]\Theta =0.666\pi[/tex]
So pendulum will swing by an angle 0.666π