Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; after that happens, the block mass 3m moves to the right with a speed of Vm = 1.55 m/s. 3m Before WWW After (a) What is the velocity of the block mass m? (Assume right is positive and left is negative.) m/s (b) Find the system's original elastic potential energy, taking m = 0.360 kg. (c) Is the original energy in the spring or in the cord? O in the spring O in the cord (d) Is the momentum of the system conserved in the bursting-apart process? O Yes O No (e) If the spring was compressed by 4.70 cm, what is the spring constant of the spring? N/m
Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massive block, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding the blocks together is burned; after that happens, the block mass 3m moves to the right with a speed of Vm = 1.55 m/s. 3m Before WWW After (a) What is the velocity of the block mass m? (Assume right is positive and left is negative.) m/s (b) Find the system's original elastic potential energy, taking m = 0.360 kg. (c) Is the original energy in the spring or in the cord? O in the spring O in the cord (d) Is the momentum of the system conserved in the bursting-apart process? O Yes O No (e) If the spring was compressed by 4.70 cm, what is the spring constant of the spring? N/m
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 60P: A cannon is rigidly attached to a carriage, which can move along horizontal rails but is connected...
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