Question E Two blocks of masses m and 3m are placed on a frictionless, horizontal surface. A light spring is attached to the more massiveblock, and the blocks are pushed together with the spring between them as shown in the figure below. A cord initially holding theblocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of v.1.65 m/s.%3D3m3mmBeforeaV3m3mmAfter(a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.)-4.9m/s(b) Find the system's original elastic potential energy, taking m = 0.470 kg.7.7(c) Is the original energy in the spring or in the cord?in the springin the cord(d) Is the momentum of the system conserved in the bursting-apart process?YesNo(e) If the spring was compressed by 5.30 cm, what is the spring constant of the spring?X N/m

given: spring was compressed x=5.30 cm x= 5.30 * 10-2 m also, kinetic energy = 7.7 J ( already derived)since, K.E = 1/2 k x2 7.7 = 0.5 * k * (5.30*10-2 ) 2 7.7=1.4*10-3 k k=5.48*103 N/m

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Two blocks of masses m and 3m are placed on a frictionless, norizontal 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 vam = 1.65 m/s. 3m Before 3m m

Two blocks of masses m and 3m are placed on a frictionless, norizontal 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 vam = 1.65 m/s. 3m Before 3m m

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 particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

Question E

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.
1.65 m/s.
%3D
3m
3m
m
Before
a
V3m
3m
m
After
(a) What is the velocity of the block of mass m? (Assume right is positive and left is negative.)
-4.9
m/s
(b) Find the system's original elastic potential energy, taking m = 0.470 kg.
7.7
(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 5.30 cm, what is the spring constant of the spring?
X N/m

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