An Object of Mass 2

question 57

Multiple Choice

An object of mass 2.00 kg starts at rest from the top of a rough inclined plane of height 20.0 m as shown in Fig. 8-9. If the work done by the force of friction is -150 J, what is the speed of the object as it reaches the bottom of the inclined plane? Use g = 10.0 m/s².

• A)15.8 m/s
• B)150 m/s
• C)10.0 m/s
• D)20.0 m/s
• E)200 m/s

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