Peoples Physics Book Version-2

10.4. Example 1 http://www.ck12.org

We are only concerned with^12 αt^2 becauseθiandwiboth equal 0. All we need to do is solve for time.

θ=

1

2

αt^2 ⇒ 2 θ×α=t^2 ⇒

√

2 θ

α

=t

Now we plug in the known values to get time.
√
2 × 2 π
.02r/s^2
=25s