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

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

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
d. None of these are correct

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