Concept explainers
Maria shows her friends a simple 31 -cm-long pendulum. Her teacher, looking on, asks if she can predict the period of the pendulum before she demonstrates it. What’s your prediction?
To Explain: Whether a person can predict the time period of the pendulum before demonstrating it, if length is known.
Answer to Problem 57A
Yes, a person can predict the period, before demonstrating it.
Explanation of Solution
Given:
Person M shows her friends a simple 31 cm long pendulum.
Formula used:
The time period is given as,
L is length and g is acceleration due to gravity
Calculation:
If length is given, then a person can predict the period of the pendulum.
As from the formula, other variables are constants in
If the value of Lis known, then a person can predict a period before demonstrating it.
Chapter 25 Solutions
Conceptual Physics: The High School Physics Program
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