Concept explainers
(a)
The diameter of steel cable.
Answer to Problem 72QAP
The diameter of steel cable is
Explanation of Solution
Given:
Let the radius of steel cable be
Total active weight of diesel engine
Ultimate breaking strength of steel
Formula used:
Here, all alphabets are in their usual meanings.
Calculation:
Substituting the given values in the formula,
Hence, the required diameter
Conclusion:
Thus, the diameter of steel cable is
(b)
The stretched length of cable.
Answer to Problem 72QAP
The stretched length of cable is
Explanation of Solution
Given:
Original length of cable
Ultimate breaking strength of steel
Young's Modulus of steel
Let
Formula used:
Young's Modulus
Here, all alphabets are in their usual meanings.
Calculation:
Substituting the given values in the formula,
Hence, the stretched length of cable is
Conclusion:
Thus, the stretched length of cable is
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Chapter 9 Solutions
COLLEGE PHYSICS
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