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The masses are not attached to the spring. The l =g. After releasing the system from rest, the 5.0 contact with the spring. moving when it loses contact with the spring? ww

The masses are not attached to the spring. The l =g. After releasing the system from rest, the 5.0 contact with the spring. moving when it loses contact with the spring? ww

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter15: Oscillations
Section: Chapter Questions
Problem 64AP: A 2.00-kg object hangs, at rest, on a 1.00-m-long string attached to the ceiling. A 100-g mass is...
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14-15. Please help answer these two questions that relate to each other, thank you so much!! :))
(numbers 14-15) An ideal spring is initially compressed and placed between two masses on a horizontal frictionless surface. The masses are not attached to the spring. The left mass is 5.0 kg and the right mass is 7.0 kg. After releasing the system from rest, the 5.0 kg mass travels at 14.0 m/s when it loses contact with the spring. 14. How fast is the 7.0 kg mass moving when it loses contact with the spring? a) 2.0 m/s b) 4.0 m/s c) 6.0 m/s d) 8.0 m/s e) 10.0 m/s mur 15. How much potential energy did the spring release during this process? a) 840 J b) 790 J c) 740 J d) 690 J e) 640 J
Transcribed Image Text:(numbers 14-15) An ideal spring is initially compressed and placed between two masses on a horizontal frictionless surface. The masses are not attached to the spring. The left mass is 5.0 kg and the right mass is 7.0 kg. After releasing the system from rest, the 5.0 kg mass travels at 14.0 m/s when it loses contact with the spring. 14. How fast is the 7.0 kg mass moving when it loses contact with the spring? a) 2.0 m/s b) 4.0 m/s c) 6.0 m/s d) 8.0 m/s e) 10.0 m/s mur 15. How much potential energy did the spring release during this process? a) 840 J b) 790 J c) 740 J d) 690 J e) 640 J
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