Question

A wheel starts from rest and rotates with constant angular acceleration to reach an angular speed of 11.9 rad/s in 3.10 s. (a) Find the magnitude of the angular acceleration of the wheel.

Answer 1

Answer:

The value is  $\alpha = 3.84 \ rad/s^2$

Explanation:

From the question we are told that

    The constant angular speed is  $w = 11.9 \ rad/s$

     The time taken is  $t = 3.10 \ s$

Generally the magnitude of the angular acceleration is  mathematically represented as  

          $\alpha = \frac{w}{t}$

=>     $\alpha = \frac{11.9}{ 3.10 }$

=>     $\alpha = 3.84 \ rad/s^2$