7. A weight of 30 pounds stretches a spring 4 inches. The weight is removed and replaced by another weight of 102.4 pounds. The weight on the spring is then released from a position of 3 inches above the equilibrium with an downward velocity of 2 feet per second. Round all values to 2 decimal places. (a) Find the position, X(t) equation for the spring that gives the position in feet in terms of the elapsed time in seconds. Show all work. (b) Graph your equation from (a) here, labeling the equation, axes and scale. Then use your graph to find the first the weight passes the equilibrium, heading upwards. Write a summary sentence.

7. A weight of 30 pounds stretches a spring 4 inches. The weight is removed and replaced by another weight of 102.4 pounds. The weight on the spring is then released from a position of 3 inches above the equilibrium with an downward velocity of 2 feet per second. Round all values to 2 decimal places. (a) Find the position, X(t) equation for the spring that gives the position in feet in terms of the elapsed time in seconds. Show all work. (b) Graph your equation from (a) here, labeling the equation, axes and scale. Then use your graph to find the first the weight passes the equilibrium, heading upwards. Write a summary sentence.

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 89AP: In building a house, carpenters use nails from a large box. The box is suspended from a spring twice...

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