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Physics
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Topic Topic: An object of mass 0.2 kg is dropped from an elevated platform... Post ReplyNew Question
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System
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Joined: 26 June 2005
Posts: 918
Posted: 28 November 2005 at 4:46pm | IP Logged Quote System

QUIZ QUESTION #1983
An object of mass 0.2 kg is dropped from an elevated platform so that it falls vertically downwards. The object achieved a final velocity of 4 m/s just before striking the ground. Determine the change in potential energy experienced by the object.
    A.   Potential energy increased by 1.6 J
    B.   Potential energy increased by 0.8 J
    C.   Potential energy decreased by 1.6 J
    D.   Potential energy decreased by 0.8 J
 QUIZ QUESTION #1983 created by Guest on 28 November 2005 at 1:11am

Correct answer: C    Correct clicks: 51.06%  Wrong clicks: 48.94%
 
    A.   [6 clicks 12.77%] 
 
    B.   [12 clicks 25.53%] 
 
    C.   [24 clicks 51.06%] 
 
    D.   [5 clicks 10.64%] 
 
Please discuss this quiz question.
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