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anonymous

  • one year ago

The height of a projectile that has been launched upward can be determined by finding the sum of the product of one-half of the object’s acceleration and t2, the product of the object’s initial velocity and t, and the object’s initial height, where t represents the number of seconds after the object has been launched. An object’s acceleration can be assumed to be -32 ft/s2, which is the acceleration due to gravity. a. Why do you think the acceleration due to gravity is represented by a negative number?

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  1. anonymous
    • one year ago
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    soo what do u know so far

  2. anonymous
    • one year ago
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    I don't know, I can't understand a word of what that is saying

  3. DanJS
    • one year ago
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    if you let upwards be positive and down be negative, the acceleration of gravity is down, it opposes upward motion

  4. DanJS
    • one year ago
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    it is arbitrary, you call up negative and the acceleration would be +

  5. anonymous
    • one year ago
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    b. Write a formula to represent the height of a projectile for any given time t.

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