Physics Fundamentals
2nd Edition
ISBN: 9780971313453
Author: Vincent P. Coletta
Publisher: PHYSICS CURRICULUM+INSTRUCT.INC.
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Chapter 1, Problem 1Q
To determine
To Find: The approximate orientation of the lower leg when the ankle moves at minimum speed.
Expert Solution & Answer
Answer to Problem 1Q
Lower leg is vertically oriented when the ankle moves at minimum speed.
Explanation of Solution
Introduction:
Speed: speed can be defined as distance travelled by an object per unit time. SI unit of speed is
In the given figure, (a) represent the motion of different parts of leg while (b) represents the instantaneous motion of the corresponding parts.
Farther the dots, maximum will be the speed whilecloser the dots minimum will be the speed.
It is very clear from figure (b), that minimum speed is where the distance between dots are almost negligible. Corresponding to this the orientation of the lower leg is almost vertical.
Conclusion:
Orientation of lower leg is almost vertical, during the minimum speed of the ankle.
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Chapter 1 Solutions
Physics Fundamentals
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