A 200-lb man walks up an inclined plank of negligible weight which makes an angle of 70o with the wall. The coefficient of static friction between the floor and the ladder is 0.3 and that between the ladder and the wall is 0.2. When the man is at a horizontal distance X from the foot of the plank, the plank would begin to slide. (a) Draw a complete FBD of the system. Find (b) the frictional force on the floor, and the frictional force on the wall and (c) the horizontal distance X.
Rotational Equilibrium And Rotational Dynamics
In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.
Equilibrium of Forces
The tension created on one body during push or pull is known as force.
A 200-lb man walks up an inclined plank of negligible weight which makes an angle of 70o with the wall. The coefficient of static friction between the floor and the ladder is 0.3 and that between the ladder and the wall is 0.2. When the man is at a horizontal distance X from the foot of the plank, the plank would begin to
slide.
(a) Draw a complete FBD of the system.
Find (b) the frictional force on the floor, and the frictional force on the wall and
(c) the horizontal distance X.
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