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    dee145's Avatar
    dee145 Posts: 8, Reputation: 1
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    #1

    Mar 2, 2011, 06:38 PM
    Physics
    Adam is riding forward on an electric scooter at 10 m/s. He throws a ball to Robert, who is stationary. The ball travels at a speed of 8 m/s relative to Adam. How fast is the ball moving relative to Robert as he tries to catch it?
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    jcaron2 Posts: 986, Reputation: 204
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    #2

    Mar 2, 2011, 06:52 PM
    Where are you getting stuck? Do you at least have a guess as to what the answer is?
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    dee145 Posts: 8, Reputation: 1
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    #3

    Mar 2, 2011, 06:53 PM
    Comment on jcaron2's post
    Nope
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    jcaron2 Posts: 986, Reputation: 204
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    #4

    Mar 2, 2011, 07:06 PM
    Adam is moving at 10 m/s, and the ball goes an additional 8 m/s faster than that. So how fast is it traveling in all?
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    dee145 Posts: 8, Reputation: 1
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    #5

    Mar 2, 2011, 07:13 PM
    Comment on jcaron2's post
    I guess 18
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    jcaron2 Posts: 986, Reputation: 204
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    #6

    Mar 2, 2011, 07:14 PM

    You got it. That's all there is to it. :)
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    dee145 Posts: 8, Reputation: 1
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    #7

    Mar 2, 2011, 07:17 PM
    Comment on jcaron2's post
    OK
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