Concept explainers
a.
Find the time taken for the shadow to make
a.
Answer to Problem 36PPS
The time taken to move is
Explanation of Solution
Given: It is given in the question that a shadow moves around a sundial
Concept Used:
In this, use the concept of changing radian into degree or degree into radian by multiplying
Calculation: Since, change the radian into degree,
Now ,
For every
For
Conclusion:
The time taken is
b.
Find the angle of rotation in radian after
b.
Answer to Problem 36PPS
The angle of rotation will be
Explanation of Solution
Given:
It is given in the question that a shadow moves around a sundial
Concept Used:
In this, use the concept of changing radian into degree or degree into radian by multiplying
Calculation:
Since,
For one hour, the angle of rotation =
For
Now, change degree into radian,
Conclusion:
The angle will be
c.
Calculate the arc of the shadow formed after
c.
Answer to Problem 36PPS
The length of the arc of the shadow is
Explanation of Solution
Given:
It is given in the question that a shadow moves around a sundial
Concept Used:
In this, use the concept of changing degree into radian by multiplying by
Calculation:
Total degree after
First change degree into radian,
Now, use the arc length,
Conclusion:
The length of the arc is
Chapter 13 Solutions
Algebra 2
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