Question

A ceiling fan is initially set to its highest speed, spinning at a rate of 25.5 rad/s. The fan is turned to a lower setting, resulting in an angular acceleration with a magnitude of 1.40 rad/s² being exerted on the blades. If it takes 4.10 s for the fan to reach its final speed, what is the final angular speed of the fan?

• 116 rad/s
• 31.2 rad/s
• 92.8 rad/s
• 5.74 rad/s
• 19.8 rad/s

Answer 1