Velocity and time for the moving particle

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Reference no: EM1313108

Question 1. An arrow is shot vertically upward. Its height p in feet above the ground after t seconds is given by p(t) = -16t2 + 160t + 384. How long does it take to reach its highest point?

2 sec
5 sec
384 sec
12 sec

Question 2. A particle moves along the x-axis with its position at time t given by x(t) = t3 - 2t + 4. Which of the following is the velocity at time t = 4?

Reference no: EM1313108

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