Vector Dynamics: Example, kinetics of rigid bodies (1 point constrained)

[@Mr02071961]

If we pick for theta any angle between 0 an 90 degrees, acceleration of point A is greater than "g". How come?

[@Mr02071961]

My result is: a(A)=g x sin(theta) x [1 - 0.75 x cos(theta)] and alpha=1.5 x g/L x sin(theta) x cos(theta).