Mechanics & hydromechanics
posted by joe .
A uniform plank AB of length 4.6 m and weight 508 N is suspended by a vertical rope at each end.A girl of weight 305 N stands in the position 1.6 m from one end.Calculate the tension in the rope at one end using the other end as axis of rotation.
Mechanics & hydromechanics -
Hint: the moment about the axis of roation is zero.