Calculate the magnitude of the force supported by the point at A under the action of the 2.6-kN load applied to the bracket. Neglect friction in the slot. Solution let i suppose ....the end point D.... The sum of the vertical forces = 0 Force exerted by support b (Fb) + force exerted by support d (Fd) - the weight of the child - the weight of the beam = 0 Fb + Fd = 2.6kN This is our first equation 2) Taking Moments about B: (2.6x2) = Fd x 3.5 Fd= 140 N And using the first equation Fb= 1.05k N For part c): 1) Take Moments about D: (1.5 x 100) + (145 x DF) = 1.05 x 3.5 Therefore DF = 1.5 m.