Question

A wheel Was spinning at 2.8 rad/s. It took 3.2 seconds to stop completely. What is the acceleration of the wheel?

Answer 1

Given

The angular velocity is

`\omega=2.8\text{ rad/s}`

The time taken,

`t=3.2s`

To find

The acceleration of the wheel

Step-by-step explanation

The acceleration is

`\begin{gathered} \alpha=(\omega)/(t) \\ \Rightarrow\alpha=(2.8)/(3.2)=(0.875rad)/(s^2) \end{gathered}`

Conclusion

The acceleration is

`0.875\text{ rad/s}^2`