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Topic Topic: What is the boy's speed before he touches the ground? Post ReplyNew Question
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Joined: 26 June 2005
Posts: 918
Posted: 29 November 2005 at 4:49pm | IP Logged Quote System

A boy of mass 25 kg climbs atop a playground slide of height h=3m. When the boy slides down the inclined board, the work done to overcome friction is 550 Joule. What is the boy's speed before he touches the ground?
    A.   5.0 m/s
    B.   4.0 m/s
    C.   3.2 m/s
    D.   2.5 m/s
 QUIZ QUESTION #2058 created by Guest on 28 November 2005 at 12:11am

Correct answer: B    Correct clicks: 42.39%  Wrong clicks: 57.61%
    A.   [28 clicks 15.22%] 
    B.   [78 clicks 42.39%] 
    C.   [58 clicks 31.52%] 
    D.   [20 clicks 10.87%] 
Please discuss this quiz question.
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