The path of a projectile that is launched h feet above the ground with an initial velocity of t\) feet per second and at an angle 0 with the horizontal is given by the parametric equations
where t is the time, in seconds, after the projectile was launched. The parametric equation for x gives the projectile’s horizontal distance, in feet. The parametric equation for y gives the projectile’s| height, in feet. Use these parametric equations to solve Exercises 69 -70.
The figure shows the path for a baseball that was hit with an initial velocity of 150 feet per second at an angle of 35° to the horizontal. The ball was hit at a height of 3 feet off the ground.
a. Find the parametric equations that describe the position of the ball as a function of time.
b. Describe the ball's position after 1, 2, and 3 seconds. Round to the nearest tenth of a foot. Locate your solutions on the plane curve.
c. How long is the ball in flight? (Round to the nearest tenth of a second. ) What is the total horizontal distance that it travels, to the nearest tenth of a foot, before it lands? Is your answer consistent with the figure shown?
d. Use the graph to describe something about the path of the baseball that might be of interest to the player who hit the ball. Then verify your observation algebraically.
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
EBK ALGEBRA AND TRIGONOMETRY
- Solve by the quadratic formula or completing the square to obtain exact solutions. 2 e 104 OA) -16±3√6 B) 8±√10 O c) -8±√10 OD) 8±3√√6 Uarrow_forwardQuestion 14 (1 point) Listen The frame on a picture is 18 in by 22 in outside and is of uniform width. Using algebraic methods, what is the width of the frame if the inner area of the picture shown is 250 in²2? Write answer to 2 decimal places. (Write the number with no units). 18 in Your Answer: 22 inarrow_forward◄ Listen A vacant lot is being converted into a community garden. The garden and a walkway around its perimeter have an area of 560 square feet. Find the width of the walkway (x) if the garden measures 15 feet wide by 19 feet long. Write answer to 2 decimal places. (Write the number without units). X 15 feet Your Answer: 19 feet Xarrow_forward
- Listen A stuntman jumps from a roof 440 feet from the ground. How long will it take him to reach the ground? Use the formula, distance, d = 16t2, (where t is in seconds). Write answer to 1 decimal place. (Write the number, not the units). Your Answer:arrow_forwardSolve x² - 10x + 24 = 0 ○ A) 4,6 B) -12, -2 C) 12,2 D) -4, -6arrow_forwardc7. = -(9 - x) 25 A a) -1, 11 b) 31 c) 11 d) 1, 11arrow_forward
- 2 4x² - 12x-7=0 A) 7 ON 1,-1 4 OB)-, 7 1 C) 2,2 Oa½½-½ c) 17/17, - 1/1/1 D) 2, 2 ODI-,-arrow_forwardSolve using the quadratic equation formula 4x² + 12x=-6 ○ a) -12±√√3 2 b) -3±√15 -3+√15 2 ○ c) c) -3±√√√3 2 d) -3±√3 8arrow_forwardListen Solve the quadratic equation by factoring. One solution is 0. Find the other. 2x² + 16x = 0 Your Answer: Answerarrow_forward
- Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningTrigonometry (MindTap Course List)TrigonometryISBN:9781305652224Author:Charles P. McKeague, Mark D. TurnerPublisher:Cengage LearningTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage