OC M Wiley PLUS Solution Manual Wiley pd x Physics question I Chegg X C edugen.w

Question

OC M Wiley PLUS Solution Manual Wiley pd x Physics question I Chegg X C edugen.wileyplus.com/edugen/student/mainfr.uni EEE Apps HP Connected h NHL Live Strea Watch NBA Live Strea Gradebook ORION y & Practice Assignment NEXT FULL SCREEN PRINTER VERSION BACK RCES Chapter 08, Problem 019 The figure shows an 7.5 kg stone at rest on a spring. The spring is compressed 8.9 cm by the stone (a) What is the spring constant? (b) The stone is pushed down an additional 29 cm and 034 released What is the elastic potential energy of the compressed spring just before that release? (c) at is the change in the gravitational potential energy of the stone-Earth system when the stone 064 moves from the release point to its maximum height? (d) What is that maximum height, measured from the release point? 029 035 057 019 00 m 019 053 091 (a) Number Units Study (b) Number Units (c) Number Units (d) Number Units SHOW HINT GO TUTORIAL LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE Question Attempts: Unlimited SAVE FOR LATER SUBMIT ANSWER 31 PM m Cortana. Ask me anything 4/27/2016

Explanation / Answer

given,

mass of stone = 7.5 kg

spring is compressed by = 8.9 cm

so,

mg = kx

7.5 * 9.8 = k * 0.089

spring constant k = 825.8 N/m

stone is pushed down additionally 29 cm then,

x = 8.9 + 29

x = 37.9 cm

elastic potential energy = 0.5 * k * x^2

elastic potential energy = 0.5 * 825.8 * 0.379^2

elastic potential energy = 59.30 J

suppose when spring is compressed to 37.9 cm the potential energy of the stone is 0 J so when the spring is released the energy lost by the spring is gained by the stone and final potential energy of the stone will become 59.3 J

mgh = 59.3 J

7.5 * 9.8 * h = 59.3 J

h = 0.806 m

Correction:

maximum height, measured from the release point = 0.806 m /**** correct answer *****/

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