You're right, I failed to give the required information.
The factors that affect the angular acceleration are the length of the board L (20m) and the gravitational acceleration g (9.82m/s^2)
The angular acceleration can be considered to be constant (for small inclinations) and changing...
Problem: I have to find out the power that is required to set the balanced seesaw from equilibrium to an oscillation that changes direction in an inclination of 30°.
I also have to know the power required to eventually stop that motion and bring the seesaw back to equilibrium.
I have...