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Mastering Physics: Pretest for test 3 Google Chrome Secure https://session.maste

ID: 1604611 • Letter: M

Question

Mastering Physics: Pretest for test 3 Google Chrome Secure https://session.masteringphysics.com/myct/itemView?assignmentProblemID 77333842 PHY 1055 SP/2017 Problem 5.45 Problem 5.45 Part A You find that if you hang a 105kg weight from a vertcal spring, it What is the foroe constantofthis spring in Nm? stretches 4.45 cm Co N/m Submit Answers geaug Part B How much mass should you hang from the spring so itwill stretch by 988 cm from its original, unstretched length kg. Submit My Answers gave up signed in as Antoine Carr Helg l gase Resources prevtous l 8of8 I return to assigment Provide Feedback Continue

Explanation / Answer

A) k = F/y = mg / y = 1.95*9.81 / .0445 = 429.876 N/m

B) F = ky = .0968 * 429.876 = 41.61 N
m = F/g = 41.61 /9.81 = 4.241 kg