Concept explainers
A small mailbag is released from a helicopter that is descending steadily at 1.50 m/s. After 2.00 s, (a) what is the speed of the mailbag, and (b) how far is it below the helicopter? (c) What are your answers to parts (a) and (b) if the helicopter is rising steadily at 1.50 m/s?
(a)
Answer to Problem 50P
Explanation of Solution
Given Info: The initial velocity of the mailbag is
Explanation:
The formula used to calculate final velocity of the mailbag is,
Here,
Substitute
Thus, the magnitude of the velocity of the mailbag is
Conclusion:
The magnitude of the velocity of the mailbag is
(b)
Answer to Problem 50P
Explanation of Solution
The formula used to calculate the displacement of the mailbag is,
Here,
Substitute
Thus, the displacement of the mailbag is
The formula used to calculate the displacement of the copter is,
Here,
Substitute
Thus, the displacement of the copter is
The formula used to calculate the distance separating the package and the helicopter is,
Here,
Substitute
Thus, the distance separating the package and the helicopter is
Conclusion:
The distance separating the package and the helicopter is
(c)
Answer to Problem 50P
Explanation of Solution
Given Info: The initial velocity of the mailbag is
Explanation:
The formula used to calculate final velocity of the mailbag is,
Here,
Substitute
Thus, the magnitude of velocity of the mailbag is
The formula used to calculate the displacement of the mailbag is,
Here,
Substitute
Thus, the displacement of the mailbag is
The formula used to calculate the displacement of the copter is,
Here,
Substitute
Thus, The displacement of the copter is
The formula used to calculate the distance separating the package and the helicopter is,
Here,
Substitute
Thus, the distance separating the package and the helicopter is
Conclusion:
Answers to part (a) and (b) if the helicopter is rising steadily at
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- University Physics Volume 1PhysicsISBN:9781938168277Author:William Moebs, Samuel J. Ling, Jeff SannyPublisher:OpenStax - Rice University