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Get Full Access to University Physics - 13 Edition - Chapter 5 - Problem 28dq
Get Full Access to University Physics - 13 Edition - Chapter 5 - Problem 28dq

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# You have two identical tennis balls and fill one with

ISBN: 9780321675460 31

## Solution for problem 28DQ Chapter 5

University Physics | 13th Edition

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University Physics | 13th Edition

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Problem 28DQ

You have two identical tennis balls and fill one with water. You release both balls simultaneously from the top of a tall building. If air resistance is negligible, which ball will strike the ground first? Explain. What if air resistance is ?not? negligible?

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Solution 28DQ If they were for example in a vacuum then as gravity acts proportionally then they would hit the ground at the same time.this means if air resistance is negligible both will hit the ground at the same time. However if both balls are same size and one filled with water they will both fall accelerating till they reach terminal velocity which is proportional to force and drag and is reached both are in balance. As the force higher with the water filled tennis ball so it hits ground first when air resistance is not negligible. For these objects,the gravitational force is huge in comparison to the air resistance force.essentially it doesn't do much change to the falling acceleration of these two objects.but it matters when air resistance concept occurs.for anything at low speed will have a negligible air resistance and high speed will have significant air resistance.some examples where you do not neglect air resistance are: 1.A falling piece of paper or feather. 2.A ping pong ball. 3.A falling human at high speeds. 4.A professionally thrown base ball (100 mph). 5.Tiny rocks or gravy. In many situations where a heavier object does indeed hit the ground before a lighter object(because of air resistance).

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##### ISBN: 9780321675460

University Physics was written by and is associated to the ISBN: 9780321675460. The answer to “You have two identical tennis balls and fill one with water. You release both balls simultaneously from the top of a tall building. If air resistance is negligible, which ball will strike the ground first? Explain. What if air resistance is ?not? negligible?” is broken down into a number of easy to follow steps, and 43 words. Since the solution to 28DQ from 5 chapter was answered, more than 384 students have viewed the full step-by-step answer. This full solution covers the following key subjects: air, resistance, balls, negligible, building. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The full step-by-step solution to problem: 28DQ from chapter: 5 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This textbook survival guide was created for the textbook: University Physics, edition: 13.

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