College Physics
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ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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![**Problem Statement:**
Suppose a 375 g kookaburra (a large kingfisher bird) picks up a 90 g snake and raises it 2.9 m from the ground to a branch.
**Questions:**
(a) How much work (in J) did the bird do on the snake?
[ ] J
(b) How much work (in J) did it do to raise its own center of mass to the branch?
[ ] J
**Explanation:**
This problem involves the calculation of work done in lifting objects vertically against gravity. The work done can be determined using the formula:
\[ \text{Work} = \text{Force} \times \text{Distance} \]
Where the force is equivalent to the weight of the object being lifted, calculated as:
\[ \text{Force} = \text{Mass} \times \text{Gravity} \]
Gravity is typically 9.8 m/s². The problem requires calculating work done on two different masses: the snake and the bird itself, as they are both raised to a height of 2.9 meters.](https://content.bartleby.com/qna-images/question/53409a93-d066-4667-98a3-0911cacf5595/40b76bbd-f2f4-4c87-b118-ff5a278dab4f/tnbrzsl_processed.jpeg)
Transcribed Image Text:**Problem Statement:**
Suppose a 375 g kookaburra (a large kingfisher bird) picks up a 90 g snake and raises it 2.9 m from the ground to a branch.
**Questions:**
(a) How much work (in J) did the bird do on the snake?
[ ] J
(b) How much work (in J) did it do to raise its own center of mass to the branch?
[ ] J
**Explanation:**
This problem involves the calculation of work done in lifting objects vertically against gravity. The work done can be determined using the formula:
\[ \text{Work} = \text{Force} \times \text{Distance} \]
Where the force is equivalent to the weight of the object being lifted, calculated as:
\[ \text{Force} = \text{Mass} \times \text{Gravity} \]
Gravity is typically 9.8 m/s². The problem requires calculating work done on two different masses: the snake and the bird itself, as they are both raised to a height of 2.9 meters.
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