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 of mass 3m moves to the right with a speed of V 2.65 m/s 3m 3m m Before V3N V Зт т After (a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.) m/s 0.480 kg (b) Find the system's original elastic potential energy, taking m = J (c) Is the original energy in the spring or in the cord? in the spring in the cord (d) Is the momentum of the system conserved in the bursting-apart process? Yes No (e) If the spring was compressed by 2.10 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 of mass 3m moves to the right with a speed of V 2.65 m/s 3m 3m m Before V3N V Зт т After (a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.) m/s 0.480 kg (b) Find the system's original elastic potential energy, taking m = J (c) Is the original energy in the spring or in the cord? in the spring in the cord (d) Is the momentum of the system conserved in the bursting-apart process? Yes No (e) If the spring was compressed by 2.10 cm, what is the spring constant of the spring? N/m

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter9: Linear Momentum And Collisions

Section: Chapter Questions

Problem 55P: A projectile of mass 2.0 kg is fired in the air at an angle of 40.0 to the horizon at a speed of...

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