A spring (70 N/m ) has an equilibrium length of 1.00 m. The spring is compressed...

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Physics

A spring (70 N/m ) has an equilibrium length of 1.00 m. Thespring is compressed to a length of 0.50 m and a mass of 2.2 kg isplaced at its free end on a frictionless slope which makes an angleof 41 ? with respect to the horizontal. The spring is thenreleased.Â Â (Figure 1)
Part A
If the mass is not attached to the spring, how far up the slopefrom the compressed point will the mass move before coming torest?
Express your answer using two significant figures.
d = Â Â mÂ Â
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Part B
If the mass is attached to the spring, how far up the slope fromthe compressed point will the mass move before coming to rest?
Express your answer using two significant figures.
d = Â Â mÂ Â
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Part C
Now the incline has a coefficient of kinetic friction?k. If the block, attached to the spring, is observed tostop just as it reaches the spring's equilibrium position, what isthe coefficient of friction ?k?
Express your answer using two significant figures.
?k =
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Answer & Explanation Solved by verified expert

3.7 Ratings (369 Votes)

1 Initial energy of the spring mass system spring energy 12kx2where k is spring constant 70 Nmx is compression of the spring 05 mInitial energy 1270052 875 JFinal energy of the mass potential energy of the mass See Answer

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