Problem Solving 4: LadderA 5.0-m-long ladder leans against a wall at a point 4.0 mabove a cement floor as shown. The ladder is uniformand hasfrictionless, but the floor is not, determine the forcesexerted on the ladder by the floor and by the wall.mass m = 12 kg . Assuming the wall isFwFcFcy4.0 mmgFCxCOLLEGE OF SCIENCQ2 General Physics 1:01 Rotational MotionPOLYTECHNIC UNIVERSITY OF THE PHILIPPINESProblem Solving 5: SeesawA uniform, 255-N rod that is 2.00 m long carries a 225-N weight at its right end and anunknown weight W toward the left end. When W is placed 50.0 cm from the left end of therod, the system just balances horizontally when the fulcrum is located 75.0 cm from the rightend. (a) Find W. (b) If W is now moved 25.0 cm to the right, how far and in what directionmust the fulcrum be moved to restore balance?W225 N

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A 5.0-m-long ladder leans against a wall at a point 4.0 m above a cement floor as shown. The ladder is uniform and has mass m = 12 kg. Assuming the wall is frictionless, but the floor is not, determine the forces exerted on the ladder by the floor and by the wall. %3D L. Foy mg

A 5.0-m-long ladder leans against a wall at a point 4.0 m above a cement floor as shown. The ladder is uniform and has mass m = 12 kg. Assuming the wall is frictionless, but the floor is not, determine the forces exerted on the ladder by the floor and by the wall. %3D L. Foy mg

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Dynamics

Section: Chapter Questions

Problem 34P

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Concept explainers

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.

Question

Problem Solving 4: Ladder
A 5.0-m-long ladder leans against a wall at a point 4.0 m
above a cement floor as shown. The ladder is uniform
and has
frictionless, but the floor is not, determine the forces
exerted on the ladder by the floor and by the wall.
mass m = 12 kg . Assuming the wall is
Fw
Fc
Fcy
4.0 m
mg
FCx
COLLEGE OF SCIENC
Q2 General Physics 1:01 Rotational Motion
POLYTECHNIC UNIVERSITY OF THE PHILIPPINES
Problem Solving 5: Seesaw
A uniform, 255-N rod that is 2.00 m long carries a 225-N weight at its right end and an
unknown weight W toward the left end. When W is placed 50.0 cm from the left end of the
rod, the system just balances horizontally when the fulcrum is located 75.0 cm from the right
end. (a) Find W. (b) If W is now moved 25.0 cm to the right, how far and in what direction
must the fulcrum be moved to restore balance?
W
225 N

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