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anonymous

  • 5 years ago

In exercises of unit 1, problem 1B-2 question b, it says "Find the time at which the height of the ball is at its maximum height". I understand that b/32 should be substituted for t in the following formula: s = bt - 16t². However, I don't get the result which is b²/64. Can someone please explain how to arrive at this answer? Thanks.

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  1. anonymous
    • 5 years ago
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    You seem to be on the right track; maybe you should check your work, or maybe I don't understand your question.

  2. anonymous
    • 5 years ago
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    Thanks for your reply. My question is that eventhough I know that the final answer should be b²/64, I don't understand why I didn't get that answer.

  3. anonymous
    • 5 years ago
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    Yesss finaly! I got it. It was a stupid mistake of mine :)

  4. anonymous
    • 5 years ago
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    Well done!

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