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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli
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Professional Application (a) A 5.00-kg squid initially at

Chapter 2, Problem 61PE

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QUESTION:

Professional Application (a) A 5.00-kg squid initially at rest ejects 0.250-kg of fluid with a velocity of 10.0 m/s. What is the recoil velocity of the squid if the ejection is done in 0.100 s and there is a 5.00-N frictional force opposing the squid’s movement. (b) How much energy is lost to work done against friction?

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QUESTION:

Professional Application (a) A 5.00-kg squid initially at rest ejects 0.250-kg of fluid with a velocity of 10.0 m/s. What is the recoil velocity of the squid if the ejection is done in 0.100 s and there is a 5.00-N frictional force opposing the squid’s movement. (b) How much energy is lost to work done against friction?

ANSWER:

Step-by-step solution In this problem we have to calculate the recoil velocity against the frictional force and the loss in energy Step 1 of 6 (a) Initially squid does not have any velocity. So, the initial momentum of squid be zero. Here the final mass of the squid is: There is a frictional force; then, there will be an interference of the force. So, momentum will not be conserved. Now, the expression of impulse in terms of force is, Here, is frictional force and is time space in which the force acts.

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