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Secure I https//session masteringphysics.com/myct/temview?assignmentproblemID 75821574 University Physics at FDU signed in as brianna thomas Help Close Announ S17-Q1.21 tem 1 Your ins previous l 1 of 2 l next Time Remaining: 00:39:37 Hide Part A Item 1 The amplitude of the subsequent oscillations? Express your answer with the appropriate units. Course A 120 kg block is attached to a spring with spring constant 16.5 N/m While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 47.0 cm/s Sunda What are Value Units MAnswers Give Up Submit Part B The blocks speed at the point where z 0750 An Express your answer with the appropriate units.

Explanation / Answer

Amplitude of the subsequent oscillations A = sqrt [m vm2 / k]

= sqrt [1.2 * 0.472 / 16.5] = 0.127 m = 12.7 cm

b) v = sqrt [vm2 - (k/m)x2]

= sqrt [0.472 - (16.5/1.2)(0.75 * 0.127)2]

= 0.310 m/s = 31 cm/s

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