# Quiz7 - On its way down 3 At noon ship A is 100 km west of...

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Name: _____________________ Calculus I Quiz #7 – 3.5 – 3.9 Show all work!!! 1. Find the derivative: a. x x y = , find dx dy b. ) 1 ln( t e t y + = , find dt dy

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2. If a ball is thrown vertically upward with velocity of 50 feet per second, then after t seconds, the height of the ball is given by 2 16 50 ) ( t t t s - = . a. What is the maximum height reached by the ball? b. What is the velocity of the ball when it is 14 feet above the ground on its way up?
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Unformatted text preview: On its way down? 3. At noon ship A is 100 km west of ship B. Ship A is sailing east at 20 kilometers per hour and ship B is sailing directly north at 10 kilometers per hour. How fast is the distance between the ships changing at 4 pm? Write your answer in a sentence. (hint: think about whether your rates are positive or negative for this problem!!!)...
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Quiz7 - On its way down 3 At noon ship A is 100 km west of...

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