A uniform ladder stands on a rough floor and rests against a frictionless wall as shown in the figure. Since the floor i
Posted: Sat Jul 09, 2022 12:04 pm
A uniform ladder stands on a rough floor and rests against africtionless wall as shown in the figure.
Since the floor is rough, it exerts both a normalforce N1 and a frictionalforce f1 on the ladder.However, since the wall is frictionless, it exerts only a normalforce N2 on the ladder. Theladder has a lengthof L = 4.8 m, a weightof WL = 51.5 N,and rests against the wall adistance d = 3.75 m above thefloor. If a person with a mass of m =90 kg is standing on the ladder, determine the following.
(a) the forces exerted on the ladder when the person is halfwayup the ladder (Enter the magnitude only.)
(b) the forces exerted on the ladder when the person isthree-fourths of the way up the ladder (Enter the magnitudeonly.)
Since the floor is rough, it exerts both a normalforce N1 and a frictionalforce f1 on the ladder.However, since the wall is frictionless, it exerts only a normalforce N2 on the ladder. Theladder has a lengthof L = 4.8 m, a weightof WL = 51.5 N,and rests against the wall adistance d = 3.75 m above thefloor. If a person with a mass of m =90 kg is standing on the ladder, determine the following.
(a) the forces exerted on the ladder when the person is halfwayup the ladder (Enter the magnitude only.)
(b) the forces exerted on the ladder when the person isthree-fourths of the way up the ladder (Enter the magnitudeonly.)