For the following exercises, use a graphing calculator to complete the table of values for each set of parametric equations. 45. { x 1 ( t ) = t 2 − 4 y 1 ( t ) = 2 t 2 − 1 .
For the following exercises, use a graphing calculator to complete the table of values for each set of parametric equations. 45. { x 1 ( t ) = t 2 − 4 y 1 ( t ) = 2 t 2 − 1 .
Find a pair of parametric equations for y=
3(2-5)² +2. Show all your work for full credit.
Please do the following handwritten
A major league baseball pitcher throws a pitch that follows these parametric equations:
x(t) = 146t
y(t)=-16t² + 6 + 5.
The time units are seconds and the distance units are feet. The distance between the location of the pitcher and homeplate (where the batter stands) is 60.5 feet. Give EXACT answers, unless instructed otherwise.
(a) Calculate the horizontal velocity of the baseball at time t; this is the function x'(t)= | 146
(b) What is the horizontal velocity of the baseball when it passes over homeplate? 146
(c) What is the vertical velocity of the baseball at time t; this is the function y'(t)=-32t+6
(d) Recall that the speed of the baseball at time t is
s(t)=√ [x '(t)]² + [y' (t)]² ft/sec.
What is the speed of the baseball (in mph) when it passes over homeplate?
(e) At what time does the baseball hit the ground, assuming the batter and catcher miss the ball?
(f) What is the magnitude of the angle at which the baseball hits the ground?
mph.
ft/sec.
ft/sec
ft/sec.
sec.
rad. (This…
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