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An Earthball of mass 13.6 kg is rolling forward at 5.29 m/s when pushed by two students. A senior pushes the ball from behind, in the direction the ball is rolling, with a force of 207 N for 0.84 s, while a freshman pushes with a different force for a different amount of time, perhaps in a different direction. After the two pushes are completed, the Earthball is rolling forward at 9.85 m/s. What impulse did the freshman give to the Earthball? Include units in your answer.

An Earthball of mass 13.6 kg is rolling forward at 5.29 m/s when pushed by two students. A senior pushes the ball from behind, in the direction the ball is rolling, with a force of 207 N for 0.84 s, while a freshman pushes with a different force for a different amount of time, perhaps in a different direction. After the two pushes are completed, the Earthball is rolling forward at 9.85 m/s. What impulse did the freshman give to the Earthball? Include units in your answer.

Elements Of Electromagnetics
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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 An Earthball of mass 13.6 kg is rolling forward at 5.29 m/s when pushed by two students. A senior pushes the ball from behind, in the direction the ball is rolling, with a force of 207 N for 0.84 s, while a freshman pushes with a different force for a different amount of time, perhaps in a different direction. After the two pushes are completed, the Earthball is rolling forward at 9.85 m/s. What impulse did the freshman give to the Earthball? Include units in your answer.

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