1. A crane released a block of mass m 5.0 kg from a height h of 2.0 m towards a spring with spring constantk of 85 N/m as shown in the figure. Air resistance with a magnitude of 30.0 N acts on the block as it moves through the vertical height h. m (a) By how many meters was the spring compressed? (Ans.: 1.68 m) (b) What is the velocity of the block just as it touches the spring? (Ans.: 3.90 m/s)

1. A crane released a block of mass m 5.0 kg from a height h of 2.0 m towards a spring with spring constantk of 85 N/m as shown in the figure. Air resistance with a magnitude of 30.0 N acts on the block as it moves through the vertical height h. m (a) By how many meters was the spring compressed? (Ans.: 1.68 m) (b) What is the velocity of the block just as it touches the spring? (Ans.: 3.90 m/s)

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

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 8.56AP

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