Rotational Acceleration (1 Viewer)

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1. The problem statement, all variables and given/known data

Suppose a revolving door at the bank is spinning around once every 4 seconds. As you walk through, you push on the door for 3 seconds, which increases the rotational speed so that it rotates once a second. What wat the rotational acceleration due to your push?

2. Relevant equations

This is what I have so far.....

3. The attempt at a solution

Acceleration-90/4=22.5

Displacement-360/3=120

22.5 + 120= 140.5 rev/s
 

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