College Physics: A Strategic Approach (3rd Edition)

3rd Edition

ISBN: 9780321879721

Author: Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher: PEARSON

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Textbook Question

Chapter P.2, Problem 14P

Squid Propulsion

Squid usually move by using their tins, but they can utilize a form of “jet propulsion,” ejecting water at high speed to rocket them backward, as shown in Figure II.I. A 4.0 kg squid can slowly draw in and then quickly eject 0.30 kg of water. The water is ejected in 0.10 s at a speed of 10 m/s. This gives the squid a quick burst of speed to evade predators or catch prey.

FIGURE II.1

Chapter P.2, Problem 14P, Squid Propulsion Squid usually move by using their tins, but they can utilize a form of jet

What is the squid’s approximate acceleration in g?

A. 10g

B. 7.5g

C. 1.0g

D. 0.75g

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