Solve.A baseball pitcher throws a baseball with an initial speed of 140 feet per second at an angle of 20° to the horizontal. The ball leaves the pitcher's hand at a height of 5 feet. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the maximum height of the ball?
A. x = 131.56t and y = -16t2 + 47.88t + 5
3.094 sec, 1.496 sec,
40.82 feet
B. x = 124.04t and y = -16t2 + 45.14t + 5
5.856 sec, 1.411 sec,
31.838 feet
C. x = 124.04t and y = -16t2 + 45.14t + 5
5.412 sec, 1.411 sec,
259.702 feet
D. x = 124.04t and y = -16t2 + 45.14t + 5
2.706 sec, 1.411 sec,
4.99 feet
Answer: A
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