Concept explainers
a.
To discuss:Factor on which angle of tilting depends.
a.
Explanation of Solution
Introduction:
Friction:
It is a contact force which acts between two surfaces. When two surfaces try to slide or slides across each other, friction force generates.
The Free body diagram is shown below,
Here, with increase in tilt angle, the sine component of the weight
But after a certain angle
Hence,
The angle of tilting depends upon the static friction between the patient and the bedsheet.
After a certain maximum angle, the friction can’t hold the patient and the patient starts to slide.
b.
Coefficient of static friction.
b.
Answer to Problem 86A
Coefficient of static friction between the patient and the bedsheet is
Explanation of Solution
Given:
Maximum angle of tilt,
Formula used:
Coefficient of static friction is the ratio of frictional force to normal force.
Calculation:
The free body diagram can be drawn as,
At maximum angle, the component of weight parallel to bed will be equal to friction force that is
Conclusion:
Coefficient of static friction between the patient and the bedsheet is
Chapter 5 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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