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.

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So, I ended up with v=90.

@peachpi Is that correct?

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