A block placed under the head of the claw hammer as shown greatly facilitates the extraction of the nail. If a 40-lb pull on the handle is required to pull the nail, calculate the tension T in the nail and the magnitude A of the force exerted by the hammer head on the block. The contacting surfaces at A are sufficiently rough to prevent slipping. T=? Lb. A=?Lb.
A block placed under the head of the claw hammer as shown greatly facilitates the extraction of the nail. If a 40-lb pull on the handle is required to pull the nail, calculate the tension T in the nail and the magnitude A of the force exerted by the hammer head on the block. The contacting surfaces at A are sufficiently rough to prevent slipping. T=? Lb. A=?Lb.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A block placed under the head of the claw hammer as shown greatly facilitates the extraction of the nail. If a 40-lb pull on the handle is required to pull the nail, calculate the tension T in the nail and the magnitude A of the force exerted by the hammer head on the block. The contacting surfaces at A are sufficiently rough to prevent slipping.
T=? Lb. A=?Lb.
Transcribed Image Text:**Hammer Lever Mechanics in Nail Removal**
This diagram illustrates the mechanics involved in using a hammer to remove a nail from a surface. The image shows a hammer being used at a 15-degree angle to exert a force on a nail. Key details are highlighted as follows:
- **Force Application**: A force of 40 pounds (lb) is applied on the handle of the hammer.
- **Lever Arm Length**: The distance from the point of force application on the handle to the fulcrum (pivot point) is 6.5 inches.
- **Fulcrum and Nail Positioning**:
- The hammer's head acts as a fulcrum (point A), resting on the wooden surface from which the nail is being extracted.
- The nail penetrates the wood by 1 inch.
- The pivot point is positioned 1.25 inches above the surface level.
This setup demonstrates the principle of lever mechanics, where applying a force at a distance from the fulcrum can amplify the force exerted on removing the nail. The efficiency of nail removal depends on the angle, handle length, and applied force.
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