A 28000-kg open railroad car, initially coasting at 0.725 m/s with negligible friction, passes under a hopper that dumps 115000 kg of scrap metal into it. a)What is the final speed, in meters per second, of the loaded freight car? b)How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.
A 28000-kg open railroad car, initially coasting at 0.725 m/s with negligible friction, passes under a hopper that dumps 115000 kg of scrap metal into it. a)What is the final speed, in meters per second, of the loaded freight car? b)How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.
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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A 28000-kg open railroad car, initially coasting at 0.725 m/s with negligible friction, passes under a hopper that dumps 115000 kg of scrap metal into it.
a)What is the final speed, in meters per second, of the loaded freight car?
b)How much kinetic energy is lost, in joules, when the freight car receives this scrap metal? Ignore the free-fall kinetic energy of the scrap metal.
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