Passage - I :
Angular speed `omega` is the rate which an object rotates Although usually measured in radians per second, `omega` can also be expressed in degrees per second. For instance, consider a merry - go - round. Figure shows its angular speed as a function of time t. In this graph, a positive value of `omega` indicates counterclockwise rotation.

A ''complete revolution'' occurs when the merry-go-round turns through one full circle
Between `t=0` s and `t=10` s, about how many revolutions does the merry - go- round complete ?

Options

A. 1
B. 2
C. 3
D. 4

Answer

B