A 10-Kg Object Moving in a Certain Direction Has a Kinetic

question 50

Multiple Choice

A 1.0-kg object moving in a certain direction has a kinetic energy of 2.0 J.It hits a wall and comes back with half its original speed.What is the kinetic energy of this object at this point?

• A)2.0 J
• B)1.0 J
• C)0.50 J
• D)0.25 J
• E)4.0 J

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