# Project #62175 - physics

Additional problem (label "extra question"; 14 points): A stone falls onto a spring that is oriented vertically (a picture similar to Problem 19 in the text, but here the stone starts from above the spring). The mass of the stone is 1.80 kg, and it is released from rest at a height 1.15 m above the spring's top. The spring constant k = 950 N/m. For your coordinate system, take up to be positive, and use the variable y to represent vertical position. Take y = 0 to be the top of the spring when the stone is not on it. For your intermediate calculations in this problem, keep 5 significant figures. Round your final answers to 3 significant figures for each section, but your answer to c must be exactly correct to 3 sig figs, so you don't want rounding errors causing problems.

(a) How far down is the spring compressed at maximum compression?

(b) At which value of y does the stone reach its maximum speed?

(c) What is the maximum speed of the stone?

 Subject Science Due By (Pacific Time) 03/13/2015 08:22 am
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