A particle moving in a circle of radius 15 cm makes 33.3 rev/min.If the particle starts on the positive x axis at time t = 0,what is the x component of the particle's velocity at time t = 1.2 s?
A)45 cm/s
B)-3.8 cm/s
C)26 cm/s
D)-45 cm/s
E)13 cm/s

Question

Quizplus · Accepted Answer

The angular velocity is 33.3 rev/min = 3.49 rad/s. At t = 1.2 s, the angle is 4.19 rad. The x component of velocity is -45 cm/s.

A Particle Moving in a Circle of Radius 15 Cm