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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli
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can a squirrel jump from a tree branch to the ground and

Chapter 18, Problem 8CQ

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QUESTION:

can a squirrel jump from a tree branch to the ground and run away undamaged, while a human could break a bone in such a fall?

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QUESTION:

can a squirrel jump from a tree branch to the ground and run away undamaged, while a human could break a bone in such a fall?

ANSWER:

Step-by-step solution Step 1 of 2 The air drug acting on falling objects is proportional to surface area of the object. The bigger the surface area the greater to the air drug. A squirrel jumps from a tree branch to the ground and remain undamaged. The surface area that is exposed compared to the size of the object is very large. And drag forces that oppose the fall will be high. Because drag forces depend upon the size of object with an increase in surface area drag forces also increases. Thus, drag forces that oppose the motion of squirrel are very large so squirrel remains undamaged.

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