A girl of mass 48 kg is rescued from a building fire by leaping into firefighter net. The window from which she leapt was 12 m above the net. She lands in the net so that she is brought to a complete stop in 0.45 s. During this interval (a) what is this change in momentum? (b) what is the impulse on the net due to the girl (c) what is the average force on the net due to the girl?

Physics for Scientists and Engineers, Technology Update (No access codes included)
9th Edition
ISBN:9781305116399
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter9: Linear Momentum And Collisions
Section: Chapter Questions
Problem 9.13P: An estimated force-time curve for a baseball struck by a bat is shown in Figure P9.13. From this...
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A girl of mass 48 kg is rescued from a building fire by leaping into firefighter net. The window from which she leapt was 12 m above the net. She lands in the net so that she is brought to a complete stop in 0.45 s. During this interval (a) what is this change in momentum? (b) what is the impulse on the net due to the girl (c) what is the average force on the net due to the girl?

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