A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a thrust of 800 N. What is its final speed? O A. 30m/s O B. 25m/s OC. 18m/s O D. 28m/s O E. None of the above

A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a thrust of 800 N. What is its final speed? O A. 30m/s O B. 25m/s OC. 18m/s O D. 28m/s O E. None of the above

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

A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a thrust of 800 N. What is its final speed?
А. 30m/s
В. 25m/s
C. 18m/s
D. 28m/s
E. None of the above

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