Concept explainers
The raising height of the pendulum for achieving the fracture of the specimen.
Answer to Problem 44SEP
The raising height of the pendulum for achieving the fracture of the specimen is
Explanation of Solution
Write the expression of height of the hammer when it reached
Here, raised height is
Write the expression for potential energy stored in the hammer is,
Here, potential energy stored in the hammer is
Write the expression of remaining energy after fracture of the specimen is,
Here, remaining energy stored in the hammer is
Write the expression of energy used for lifting is,
Here, mass of hammer is
Conclusion:
Below figure represent the new position of the hammer when hammer is raised to
Figure-(1)
From Figure-(1), when the hammer is rotated to an angle of
Substitute,
Substitute,
Substitute,
This remaining energy is used for lifting of hammer.
Substitute,
Thus, the raising height of the pendulum for achieving the fracture of the specimen is
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Chapter 7 Solutions
Foundations of Materials Science and Engineering
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