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Unreasonable ResultsSquids have been reported to jump from the ocean and travel 30.0 $\mathrm{m}$ (measured horizontally) before re-entering the water. (a) Calculate the initial speed of the squid if it leavesthe water at an angle of $20.0^{\circ},$ assuming negligible lift from the air and negligible air resistance. (b) The squid propels itself by squirting water. What fraction of its mass would it have to eject in order to achieve the speed found in the previous part? The water is ejected at 12.0 $\mathrm{m} / \mathrm{s}$ ; gravitational force and friction are neglected. (c) What is unreasonable about the results? (d) Which premise is unreasonable, or which premises are inconsistent?

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Physics 101 Mechanics

Chapter 8

Linear Momentum and Collisions

Moment, Impulse, and Collisions

Cornell University

Simon Fraser University

Hope College

University of Sheffield

Lectures

04:30

In classical mechanics, im…

03:30

In physics, impulse is the…

03:32

Squids have been reported …

02:21

Animal propulsion. Squids …

02:34

When it is threatened, a s…

08:17

Squids and octopuses prope…

06:23

Animal Propulsion. Squids …

02:11

A flying squid (family Omm…

09:19

Squids can move through th…

02:49

Squids are the fastest mar…

02:57

BIO Squid propulsion Lolli…

04:02

(a) $\mathrm{A} 5.00$ -kg …

01:43

A rescue helicopter is hov…

03:05

Visitors at an amusement p…

07:55

Review. A Chinook salmon c…

01:41

Assume air resistance is n…

01:40

B10 Escaping 0 ctopus The …

03:40

As a fish jumps vertically…

03:14

A dolphin in an aquatic sh…

08:20

Unreasonable Results Suppo…

03:28

00:37

BIO Momentum and the squir…

we will have distance traveled in the horizontal direction equals V not D course sign as for and the distance travelled in the Y direction is zero equals fee not sign. Alfa Times D minus half g d squared. So from here we can find we re not equals V note course I in al Afar squared Thus vinyard sign of far squared square root equals D squared over 80 square or were trying to have it connected The Okay, so from here we can eliminate tea and we can write that fee not sign as, uh, Equus half g d So we get stuff your dirty over here Do you becomes Wien art courtside as far dynasties too vain Art Sign Alfa over G So it big arms the not squared sign to al far over G so we can find fee Not he's b g over sighing to as, uh, squared road equals 30 meter times 9.8 meters for a second square divided by sign off to as VII's two nd degree squared off that comes out to be 21 point 37 meter board second

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