Question

Pulling a Weed The gardening tool shown in FIGURE $11-37$ is used to pull weeds. If a $1.23-\mathrm{N} \cdot \mathrm{m}$ torque is required to pull a given weed, what force did the weed exert on the tool?

Name: Problem 2, Chapter 11: Physics
Uploaded: 2023-12-06T16:22:25-08:00
Duration: 1 min 44 s
Channel: Prabhat Tyagi
Description: Pulling a Weed The gardening tool shown in FIGURE 11-37 is used to pull weeds. If a 1.23-N ·m torque is required to pull a given weed, what force did the weed exert on the tool?

   Pulling a Weed The gardening tool shown in FIGURE $11-37$ is used to pull weeds. If a $1.23-\mathrm{N} \cdot \mathrm{m}$ torque is required to pull a given weed,
what force did the weed exert on the tool?

Physics

James S. Walker 5th Edition

Chapter 11, Problem 2

Instant Answer

Solved by Expert Prabhat Tyagi

12/06/2023

Step 1

We are given a gardening tool which is being used to remove a weed. The point where the tool is being held is the fulcrum. The distance from the fulcrum to the point where the force is applied is 4 cm, and the length of the handle is 22 cm. The force applied to Show more…

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Pulling a Weed The gardening tool shown in FIGURE $11-37$ is used to pull weeds. If a $1.23-\mathrm{N} \cdot \mathrm{m}$ torque is required to pull a given weed, what force did the weed exert on the tool?

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Key Concepts

Force-Torque Relationship

The relationship between force and torque is fundamental in mechanics, as torque equals force multiplied by the lever arm. This concept allows the analysis of rotational systems by relating linear forces to rotational effects, which is essential for understanding mechanical advantages in various tools and systems.

Torque

Torque is a measure of the tendency of a force to rotate an object about an axis. It is calculated as the product of the force applied and the distance from the pivot point (lever arm) where the force is applied, and it quantifies how effectively a force causes rotational motion.

Lever Arm

The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force. It plays a crucial role in determining the magnitude of the torque generated by a given force, with a longer lever arm increasing the effect of the force.

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