8. Peter and his partner are conducting a physics experiment on pendulum motion. Their 30-cm pendulur traverses an arc of 15 cm. To the nearest degree, how many degrees of rotation did

the pendulum swing?

90/pi degrees

Step-by-step explanation:

It forms a 15cm arc from a circle of radius 30 cm.

The diameter is 30*2*pi = 60pi cm. So the arc is 15/60pi = 1/4pi of the way around a 360 degree circle. This is 1/4pi * 360 = 90/pi degrees.

Hope that helped,

-sirswagger21

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

true !

step-by-step explanation: