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sarah_hendrix7

  • 3 years ago

Please help?

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  1. sarah_hendrix7
    • 3 years ago
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  2. cwrw238
    • 3 years ago
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    oops - i got that wrong height above ground = ut + 0.5gt^2 + 2 u = 100 g = -9.8 ( acceleration due to gravity) and t = time so we have h = 100t -4.9t^2 + 2

  3. cwrw238
    • 3 years ago
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    to find height after 2 second plug in t = 2 in the above equation

  4. cwrw238
    • 3 years ago
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    part c height is on the ground so = zero so 0 = 100t - 4.9t^2 solve for t

  5. sarah_hendrix7
    • 3 years ago
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    Thanks so much!

  6. cwrw238
    • 3 years ago
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    yw

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