# Velocity and maximum height

If a ball is thrown vertically upward from the roof of a 48 foot building with a velocity of 64ft/sec, its height after t seconds is s(t)=48 + 64t -16t^2. What is the maximum height the ball reaches?

What is the velocity of the ball when it hits the ground (height 0)?

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#### Solution Summary

This shows how to find velocity of a ball when it hits the ground (height 0).

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