An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of vertical height h=10 m. At the bottom of the incline it encounters a smooth surface and a spring (k=200 N/m). The speed at the bottom of the incline is 10 m/s. h a) How much work does friction do on the object as it slides down the incline?

Principles of Physics: A Calculus-Based Text
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Chapter6: Energy Of A System
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2. An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of vertical height
h=10 m. At the bottom of the incline it encounters a smooth surface and a spring (k=200 N/m).
The speed at the bottom of the incline is 10 m/s.
h
a) How much work does friction do on the object as it slides down the incline?
b) How fast is the object moving when it has compressed the spring 0.5 m?
Transcribed Image Text:2. An object of mass 4.0 kg starts at rest from the top of a rough inclined plane of vertical height h=10 m. At the bottom of the incline it encounters a smooth surface and a spring (k=200 N/m). The speed at the bottom of the incline is 10 m/s. h a) How much work does friction do on the object as it slides down the incline? b) How fast is the object moving when it has compressed the spring 0.5 m?
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