Question

A ball is thrown directly upward from the edge of a rock and travels such that after t seconds its height in feet above the ground is given by the equation s(t) =-2.5t^2+10t+2

1.Find the equation that represents the instant velocity v(t) of the ball on t time.

2.When does the ball has zero velocity?

3. What is the maximum height that the ball reaches?

4. When does the ball touches the surface of the Earth?

5. build the graph of s(t)

Answer #1

A
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URGENT
A ball is thrown vertically upward from the edge of a cliff,
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