The foot of a ladder rests against a wall and its top is held by a tie rope, as shown. The ladder weighs 100 N, and its center of gravity is 0.4 of its length from the foot. A 150 N child hangs from a rung that is 0.2 of the length from the top. Determine the tension in the tie rope.

The foot of a ladder rests against a wall and its top is held by a tie rope, as shown. The ladder weighs 100 N, and its center of gravity is 0.4 of its length from the foot. A 150 N child hangs from a rung that is 0.2 of the length from the top. Determine the tension in the tie rope.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter5: Displacement And Force In Two Dimensions

Section: Chapter Questions

Problem 82A

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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.

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Question

The foot of a ladder rests against a wall and its top is held by a tie rope, as
shown. The ladder weighs 100 N, and its center of gravity is 0.4 of its length
from the foot. A 150 N child hangs from a rung that is 0.2 of the length from
the top. Determine the tension in the tie rope.
Tie rope
150 N
won meod e
jo 551ot adn
37°
100 N
0.4L

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