MasteingPhysics: HW-13 Ch 14 - Google Chrome https://session. mastering physics.

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MasteingPhysics: HW-13 Ch 14 - Google Chrome https://session. mastering physics.com/myct/itemView?offset-next&assignmentProblem; ID-61 81 01 1 1 PRINCIPLES OF PHYSICS I Signed in as Daniel Chao Hel Close HW-13 Ch 14 Problem 14.60 Resources Y « previous | 11 of 13 next» Problem 14.60 Part A A 375 g air-track glider attached to a spring with spring constant 7.00 N/m is sitting at rest on a frictionless air track. A 275 g glider is pushed toward it from the far end of the track at a speed of 120 cm/s. It collides with and sticks to the 375 g glider What is the amplitude of the subsequent oscillations? Express your answer with the appropriate units. alueUnits alne Submit My Answers Give Up Part B What is their period? Express your answer with the appropriate units alueUnits alne Submit My Answers Give Up Continue

Explanation / Answer

Conserve the Momemtum,

Velocity after collision both have a common velocity;

275*120 + 0 = (375+275)v

v = 50.77 cm/s = 0.5077 m/s

Part A:

[1/2]kx2 = [1/2](0.375+0.275)0.50772

x = 0.1547 m

Amplitude, x = 0.1547 m OR 15.47 cm

Part B:

time period, t = 2*pi*[m/k]1/2

t = 2*pi*[(0.375+0.275)/7.0]1/2 = 1.91 s

time period = 1.91 s

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