Concept explainers
(a)
The time taken by P to complete one full swing using a 10m long rope.
(a)
Answer to Problem 94A
Time is
Explanation of Solution
Given:
The length of the rope,
Formula used:
Here,
Calculation:
Substituting
Conclusion:
Hence, the time is
(b)
The difference of period of P and Mike.
(b)
Explanation of Solution
Given:
The length of the rope,
It is assumed that, the weight of P be x , then weight of Mike is
Formula used:
Here,
Calculation:
(b) There is no difference in time period of Mike and P as the mass persons would not effect the time period.
Conclusion:
Hence, no difference is found.
(c)
The point at which the KE is maximum.
(c)
Explanation of Solution
Given:
The length of the rope,
Formula used:
Here,
Calculation:
The KE or kinetic energy is maximum at the bottom of the swing.
Conclusion:
Hence, KE will take maximum value.
(d)
The point at which the potential difference is maximum.
(d)
Explanation of Solution
Given:
The length of the rope,
Formula used:
Here,
Calculation:
The PE or potential energy is maximum at the top point of the swing.
Conclusion:
Hence, potential difference will take maximum values.
(e)
The point at which the KE is minimum.
(e)
Explanation of Solution
Given:
The length of the rope,
Formula used:
Here,
Calculation:
The KE or kinetic energy is minimum at the top point of the swing.
Conclusion:
Hence, the required answer are given above.
(f)
The point at which the potential energy is minimum.
(f)
Explanation of Solution
Given:
The length of the rope,
Formula used:
Here,
Calculation:
The PE or potential energy is minimum at the bottom point of the swing.
Conclusion:
Hence, the potential energy will take minimum value.
Chapter 14 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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Sears And Zemansky's University Physics With Modern Physics
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