The diagram below shows a homogeneous symmetric ladder in static equilibrium when inclined at an angle Ⓒ with respect to the ground. The ladder touches a vertical wall and horizontal ground; both of these surfaces are rough. The mass of the ladder is 10 kg. The magnitude of the normal force due to the wall is 40 N, and the magnitude of the normal force due to the ground is 60 N. (1) Determine the torque produced by the force of gravity, direction and magnitude in Nm (2) Determine the torque produced by the force of friction between the ladder and the ground, direction and magnitude in Nm (3) Determine the torque produced by the normal force due to the wall, direction and magnitude in Nm (4) Determine the torque produced by the force of friction between the ladder and the wall, direction and magnitude in Nm Consider g=10 m/s/s. Round your answers to the nearest whole number. DO NOT use units in your answers. 3m O PIVOT

The diagram below shows a homogeneous symmetric ladder in static equilibrium when inclined at an angle Ⓒ with respect to the ground. The ladder touches a vertical wall and horizontal ground; both of these surfaces are rough. The mass of the ladder is 10 kg. The magnitude of the normal force due to the wall is 40 N, and the magnitude of the normal force due to the ground is 60 N. (1) Determine the torque produced by the force of gravity, direction and magnitude in Nm (2) Determine the torque produced by the force of friction between the ladder and the ground, direction and magnitude in Nm (3) Determine the torque produced by the normal force due to the wall, direction and magnitude in Nm (4) Determine the torque produced by the force of friction between the ladder and the wall, direction and magnitude in Nm Consider g=10 m/s/s. Round your answers to the nearest whole number. DO NOT use units in your answers. 3m O PIVOT

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotational Motion

Section: Chapter Questions

Problem 39P

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

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The diagram below shows a homogeneous symmetric ladder in static equilibrium when inclined at an angle Ⓒ
with respect to the ground. The ladder touches a vertical wall and horizontal ground; both of these surfaces
are rough. The mass of the ladder is 10 kg. The magnitude of the normal force due to the wall is 40 N, and the
magnitude of the normal force due to the ground is 60 N.
(1) Determine the torque produced by the force of gravity, direction and magnitude in Nm
(2) Determine the torque produced by the force of friction between the ladder and the ground, direction and
magnitude in Nm
(3) Determine the torque produced by the normal force due to the wall, direction and magnitude in Nm
(4) Determine the torque produced by the force of friction between the ladder and the wall, direction and
magnitude in Nm
Consider g=10 m/s/s. Round your answers to the nearest whole number. DO NOT use units in your answers.
3m
0
PIVOT

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Step 1: Free-body diagram

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Step 2: Equilibrium condition of force

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Step 3: Equilibrium condition of moment

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Step 4: Torque due to normal force

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Step 5: Torque due to force of friction

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Step 6: Torque due to normal force

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Step 7: Torque due to force of friction

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