Assignment Gradebook ORION Downloadable eTextbook ONI SCHEM PRINTER VRSION BACK

Question

Assignment Gradebook ORION Downloadable eTextbook ONI SCHEM PRINTER VRSION BACK NEXT Chapter 08, Problem 016 Your answer is partially correct. Try again. A 559 g block is released from rest at height ho above a vertical spring with spring constant k = 510 N/m and to the spring and momentarily stops after compressing the spring 21.8 cm. How much negligible mass. The block sticks work is done (a) by the block on the spring and (b) by the spring on the block? (c) What is the value of ho? (d) If the block were released from height Sho above the spring, what would be the maximum compression of the spring? Unitst (a) Numbe 2.34 (b) Nu (c) Number 1.88 (d) Number 12.34 Un

Explanation / Answer

as you got from part a and b right ,i am doing only part c and d

c)

By conservation of energy

Ki+Ui=Kf+Uf

mgho=-mgx+(1/2)kx2

0.559*9.81*ho=-0.559*9.81*0.218+(1/2)*510*0.2182

ho=1.99 m=2 m (approx)

d)

given h'=5ho

By conservation of energy

mgh'=-mgx+(1/2)kx2

0.559*9.81*5*1.99=-0.559*9.81x+(1/2)*510*x2

255x2-5.484x-54.564=0

x=0.47 m

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