Express the angular speed in radians per second.
-420 revolutions per second
A) $840 \pi$ radians per second
B) 840 radians per second
C) $420 \pi$ radians per second
D) 420 radians per second

Question

Quizplus · Accepted Answer

One revolution is equal to $2\pi$ radians. Therefore, $420$ revolutions per second is $420 \times 2\pi = 840\pi$ radians per second.

Express the Angular Speed in Radians Per Second 840π840 \pi840π Radians Per Second B) 840 Radians Per Second C)

Express the Angular Speed in Radians Per Second $840 \pi$ Radians Per Second
B) 840 Radians Per Second
C)