A monkey weights 6.25kg stands on a uniform ladder of mass 12.7 kg and length L. The ladder rests against a frictionless wall at an angle of θ=49.0° with respect to the horizontal. The ladder is on the brink of slipping when the monkey is one-third of the way up the ladder. (a)Draw a force diagram for the ladder,and label your xand yaxes on your diagram. (b)Find the normal force exerted by the wall on the ladder. Be sure to indicate on your diagram where you have placed the pivot point for thetorque equation, and explain the reason for your choice. (c)Find the normal force exerted by the ground on the ladder. (d)Find the coefficient of static friction between the ladder and the ground.Explainhow each of the two normal forces calculated above are involved in determining this value.
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 monkey weights 6.25kg stands on a uniform ladder of mass 12.7 kg and length L. The ladder rests against a frictionless wall at an angle of θ=49.0° with respect to the horizontal. The ladder is on the brink of slipping when the monkey is one-third of the way up the ladder.
(a)Draw a force diagram for the ladder,and label your xand yaxes on your diagram.
(b)Find the normal force exerted by the wall on the ladder. Be sure to indicate on your diagram where you have placed the pivot point for thetorque equation, and explain the reason for your choice.
(c)Find the normal force exerted by the ground on the ladder.
(d)Find the coefficient of static friction between the ladder and the ground.Explainhow each of the two normal forces calculated above are involved in determining this value.
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