3) The previous Dynamics TAs had so much fun at the bumper cars that decided to go again for round 2. This time, they thought it'd be a great idea if David hit Will first, and then Caryn would hit Will after. David is traveling at 15 ft/s to the right, meanwhile Caryn is traveling at 20 ft/s to the left. Will chose the broken car once again, so he is not moving. Assume Will weighs 160 lbs., Caryn weighs 120 lbs., David weighs 175 lbs. and each car weighs 300 lbs. If the coefficient of restitution between the bumper cars is 0.75, determine Will's velocity after each impact. [Ans to check: vw = 13.33 i ft/s after the first impact] David Will Caryn 20 ft/sec 15 ft/sec

3) The previous Dynamics TAs had so much fun at the bumper cars that decided to go again for round 2. This time, they thought it'd be a great idea if David hit Will first, and then Caryn would hit Will after. David is traveling at 15 ft/s to the right, meanwhile Caryn is traveling at 20 ft/s to the left. Will chose the broken car once again, so he is not moving. Assume Will weighs 160 lbs., Caryn weighs 120 lbs., David weighs 175 lbs. and each car weighs 300 lbs. If the coefficient of restitution between the bumper cars is 0.75, determine Will's velocity after each impact. [Ans to check: vw = 13.33 i ft/s after the first impact] David Will Caryn 20 ft/sec 15 ft/sec

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.

Question

3) The previous Dynamics TAs had so much fun at the bumper cars that decided to go again for
round 2. This time, they thought it'd be a great idea if David hit Will first, and then Caryn
would hit Will after. David is traveling at 15 ft/s to the right, meanwhile Caryn is traveling at
20 ft/s to the left. Will chose the broken car once again, so he is not moving. Assume Will
weighs 160 lbs., Caryn weighs 120 lbs., David weighs 175 lbs. and each car weighs 300 lbs.
If the coefficient of restitution between the bumper cars is 0.75, determine Will's velocity
after each impact. [Ans to check: vw= 13.33 i ft/s after the first impact]
Will
Caryn
David
20 ft/sec
15 ft/sec
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