A 5 m long ladder leans against a frictionless wall at an angle of 54 as shown below. In\" = I] E u d 1 (a) From the diagram above write down expressions for the x and y components of translational equilibrium and for rotational equilibrium. The pivot point should be at the base of the ladder. (3 Marks) (b) Using the expressions for translational and rotational equilibrium in (a) what is the minimum value of the coefficient of static friction, us, with the ground that prevents the ladder slipping