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is compressed 25 cm. The block starts out 5 m from p8 point P the surface is frictionless. To the right of point P the surface is frictional with coefficients of static and kinetic friction of 0.5 and 0.25, respectively. All parts of this problem must be solved using energy methods with the exception of cases discussed in lecture. a) Calculate the energy stored in the spring. b) What is velocity of the block once it leaves the platform? c) What is the work done by friction once the block is 2 m to the right of point P? d) How far from point P does the block stop?

is compressed 25 cm. The block starts out 5 m from p8 point P the surface is frictionless. To the right of point P the surface is frictional with coefficients of static and kinetic friction of 0.5 and 0.25, respectively. All parts of this problem must be solved using energy methods with the exception of cases discussed in lecture. a) Calculate the energy stored in the spring. b) What is velocity of the block once it leaves the platform? c) What is the work done by friction once the block is 2 m to the right of point P? d) How far from point P does the block stop?

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A block of 5 kg is pushed up against a platform that is attached to a spring of 1200 N/m. The spring is compressed 25 cm. The block starts out 5 m from point P and is released from rest. To the left of point P the surface is frictionless. To the right of point P the surface is frictional with coefficients of static and kinetic friction of 0.5 and 0.25, respectively. All parts of this problem must be solved using energy methods with the exception of cases discussed in lecture. a) Calculate the energy stored in the spring. b) What is velocity of the block once it leaves the platform? c) What is the work done by friction once the block is 2 m to the right of point P? d) How far from point P does the block stop?
Transcribed Image Text:A block of 5 kg is pushed up against a platform that is attached to a spring of 1200 N/m. The spring is compressed 25 cm. The block starts out 5 m from point P and is released from rest. To the left of point P the surface is frictionless. To the right of point P the surface is frictional with coefficients of static and kinetic friction of 0.5 and 0.25, respectively. All parts of this problem must be solved using energy methods with the exception of cases discussed in lecture. a) Calculate the energy stored in the spring. b) What is velocity of the block once it leaves the platform? c) What is the work done by friction once the block is 2 m to the right of point P? d) How far from point P does the block stop?
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