A spring with spring constant k = 200 N/m is fixed at the top of a frictionless plane inclined at angle 0 = 40°. A 1.0kg block is projected up the plane, from an initial position that is a distance d 0.60 m from the end of the relaxed spring, with an initial kinetic energy of 16 J. (a) What is the kinetic energy of the block at the instant it has compressed the spring 0.20 m? (b) With what kinetic energy must the block be projected up the plane if it is to stop momentarily when it has compressed the spring by 0.40 m?

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A spring with spring constant k = 200 N/m is fixed at the top of a frictionless plane inclined
at angle 0
distance d = 0.60 m from the end of the relaxed spring, with an initial kinetic energy of 16 J.
40°. A 1.0 kg block is projected up the plane, from an initial position that is a
(a) What is the kinetic energy of the block at the instant it has compressed the spring
0.20 m?
(b) With what kinetic energy must the block be projected up the plane if it is to stop
momentarily when it has compressed the spring by 0.40 m?
Transcribed Image Text:A spring with spring constant k = 200 N/m is fixed at the top of a frictionless plane inclined at angle 0 distance d = 0.60 m from the end of the relaxed spring, with an initial kinetic energy of 16 J. 40°. A 1.0 kg block is projected up the plane, from an initial position that is a (a) What is the kinetic energy of the block at the instant it has compressed the spring 0.20 m? (b) With what kinetic energy must the block be projected up the plane if it is to stop momentarily when it has compressed the spring by 0.40 m?
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