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 3m = 1.85 m/s. 3m Before After 3m (a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.) m/s (b) Find the system's original elastic potential energy, taking m = 0.300 kg. (c) Is the original energy in the spring or in the cord? O in the spring

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 3m = 1.85 m/s. 3m Before After 3m (a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.) m/s (b) Find the system's original elastic potential energy, taking m = 0.300 kg. (c) Is the original energy in the spring or in the cord? O in the spring

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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(e) Is the momentum of the system conserved in the bursting-apart process?
Yes
No
(f) Explain how that is possible considering there are large forces acting.
(g) Explain how that is possible considering there is no motion beforehand and plenty of motion afterward?

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 ✓ 3m = 1.85 m/s.
3m
m
Before
3m
m
www
After
(a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.)
m/s
(b) Find the system's original elastic potential energy, taking m = 0.300 kg.
(c) Is the original energy in the spring or in the cord?
○ in the spring
in the cord
(d) Explain your answer to part (c).

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Step 3: Calculation for final velocity of lighter object.

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Step 4: Calculation for initial and final kinetic energy of given system.

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Step 5: Calculation for system's original elastic potential energy.

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Two blocks of masses M and 3M are placed on a horizontal, frictionless surface. A light spring is attached to one of them, and the blocks are pushed together with the spring between them. A cord holding them together is burned, after which the block of mass 3M moves to the right with a speed of 55.1 m/s. What is the speed of the block of mass M?