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Author Question: An automobile (m = 1.00 103 kg) is driven into a brick wall in a safety test. The bumper behaves ... (Read 90 times)

tnt_battle

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on: Jul 28, 2018
An automobile (m = 1.00  103 kg) is driven into a brick wall in a safety test. The bumper behaves like a spring (k = 5.00  106 N/m), and is observed to compress a distance of 3.16 cm as the car is brought to rest. What was the initial speed of the automobile?

Question 2

A surprising demonstration involves dropping an egg from a third-floor window to land on a foam-rubber pad 2 in (5 cm) thick without breaking. If a 56-gram egg falls 12 m, and the foam pad stops the egg in 6.25 ms, by how much is the pad compressed?


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pikon

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Reply #1 on: Jul 28, 2018
Answer to Question 1

2.23 m/s

Answer to Question 2

4.8 cm


tnt_battle

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Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


pikon

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Reply #3 on: Jul 28, 2018
Great! Please up vote :D


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