since the floor is rough, it exerts both a normal force n1 and a frictional force f1 on the ladder. however, since the wall is frictionless, it exerts only a normal force n2 on the ladder. the ladder has a length of L= 4.8 M, a weight of Wl= 69.0 N, and rests against the wall a distance d= 3.75 m above the floor. if a person with a mass ,of m=90 kg is standing on the ladder, getermine the following.
(a) the forces exerted on the ladder when the person is halfway up the ladder (Enter the magnitude only.)
N1 = N
N2 = N
f1 = N
(b) the forces exerted on the ladder when the person is three-fourths of the way up the ladder (Enter the magnitude only.)
N1 = N
N2 = N
f1 = N
A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure.