anonymous
  • anonymous
Can someone please help me? =) The equation below describes the height, h, of the t-shirt, t seconds after it is shot from the cannon c feet above the ground, at an initial velocity of v. h = -16t^2 + vt + c Solve the equation for initial velocity, v. The cannon launched a t-shirt from an initial height of 5 feet. After 3 seconds the shirt has reached a height of 131 feet. Use your equation from #1 to find the initial velocity of the t-shirt. Show your work. What does the equation from #1 tell you about the value of the velocity, v, when t = 0? Explain.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
c = initial height = 5 ft h = -16t²+vt + 5 At t = 3 s, h = 131 ft Solve this equation for v 131 = -16(3)² + 3v + 5
anonymous
  • anonymous
So, I ended up with v=90.
anonymous
  • anonymous
@peachpi Is that correct?

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anonymous
  • anonymous
that's right
anonymous
  • anonymous
so the velocity is 90 ft/s when t = 0
anonymous
  • anonymous
I thought it was when t=3.
anonymous
  • anonymous
Would it be v=41 when t=0? Maybe I'm way off.

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