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5-5.

Use the equation, h(t), that you found in problem 5-1 to find the height of the spitwad after 2 seconds.

'How fast' could refer to velocity or speed. Be sure that you are clear in your answer.

x(t) = 10

v(t) = −10

The spitwad will be at its highest point at the moment when its velocity changes from positive to negative.