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Joe_1234

New member
A 6 m ladder weighs 350N and is placed with its lower end on a horizontal floor and its upper end against the wall. The angle between the wall and the ladder is 30°. A man weighing 900N is to climb to the very top of the ladder. The coefficient of friction between the floor and the ladder to avoid the danger of slipping is?

MarkFL

Staff member
Can you show what you have so far so we know where you're stuck?

skeeter

Well-known member
MHB Math Helper
$\sum F_x = 0$, $\sum F_y = 0$, and $\sum \tau = 0$

skeeter

Well-known member
MHB Math Helper
I forgot there is a friction between the wall and the ladder which is 0.20
Which direction do you think the wall friction acts on the ladder?