18. A slow-moving railroad speeder (m-1600 kg) used to quickly move cars into position without the rail yard collides in-elastically with a strongly magnetic plate (m-800 kg) which is attached to a stiff spring (k-5000 N/m). After the speeder's collision with the heavy plate, the spring compresses by 0.8 m. How fast was the speeder going before the collision a. 1.15 m/s b. 1.73 m/s C. 1.93 m/s

18. A slow-moving railroad speeder (m-1600 kg) used to quickly move cars into position without the rail yard collides in-elastically with a strongly magnetic plate (m-800 kg) which is attached to a stiff spring (k-5000 N/m). After the speeder's collision with the heavy plate, the spring compresses by 0.8 m. How fast was the speeder going before the collision a. 1.15 m/s b. 1.73 m/s C. 1.93 m/s

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter15: Oscillations

Section: Chapter Questions

Problem 64AP: A 2.00-kg object hangs, at rest, on a 1.00-m-long string attached to the ceiling. A 100-g mass is...

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A 2.00-kg object hangs, at rest, on a 1.00-m-long string attached to the ceiling. A 100-g mass is fired with a speed of 20 m/s at the 2.00-kg mass, and the 100.00-g mass collides perfectly elastically with the 2.00-kg mass. Write an equation for the motion of the hanging mass after the collision. Assume air resistance is negligible.
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