Type your question here Object Properties Select a Tool or Object to Begin Wrong

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Object Properties Select a Tool or Object to Begin Wrong WebAssign graphing tool Submission Data Enhanced Feedback Please try again. Remember, the slope of the graph is positive when the particle is moving to the right, negative when the particle is moving to the left, and zero when the particle is standing still. For drawing the graph of the velocity function, graph the slope of the position function at each time t. The graph of the velocity function will not be continuous. Need Help? Read t Chat About It 9. -0.4 points My Notes I SEssCalcET2 2.1.502 XP. If a rock is thrown upward on the planet Mars with a velocity of 14 m/s, its height (in meters) after t seconds is given by H 14 -1.86t2 (a) Find the velocity of the rock after two seconds m/s (b) Find the velocity of the rock when t a. m/s c) When will the rock hit the surface (Round your answer to one decimal place (d) with what velocity will the rock hit the surface m/s Need Help? Read it Chat About It Submit Answer save Progress Practice Another Version 10. 0.4/0.4 points I Previous Answers My Notes I SEssCalcET2 2.2.003. MI SA. the skipped part, and you will not This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for be able to come back to the skipped part. Tutorial Exercise

Explanation / Answer

v = dH/dt = 14 - 3.72 t

(a) v(2) = 6.56 m/s

(b) v(a) = 14 - 3.72a

(c)Solve H(t) = 0

14t - 1.86t^2 = 0

t = 14/1.86 = 7.5 s

(d)v(7.5) = -14 m/s

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