A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
Jimmy hits a baseball so that it travels at a speed of 110 ft/sec and at an angle of 35 degrees with the horizontal. Assume his bat contacts the ball at a height of 3.5 ft above the ground. Write a pair of parametric equations to simulate the path of the ball.
What is a parametric equation?
I know I need to draw a triangle, but where do I go from there? What does the speed mean?
anonymous
 one year ago
Jimmy hits a baseball so that it travels at a speed of 110 ft/sec and at an angle of 35 degrees with the horizontal. Assume his bat contacts the ball at a height of 3.5 ft above the ground. Write a pair of parametric equations to simulate the path of the ball. What is a parametric equation? I know I need to draw a triangle, but where do I go from there? What does the speed mean?

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Parametric equation give x and y as functions of a third variable called the parameter (usually t). Once you draw the triangle, resolve the speed into vertical and horizontal vectors.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The horizontal speed is constant at 110 cos 35°, so the horizontal path follows x = (110 cos 35°)t, where t = time.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How do you know it's a cosine function?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0from the triangledw:1433813593966:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Vx = 110 cos 35° Vy = 110 sin 35°

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Oh, ok! That makes a lot more sense, thank you

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The vertical speed changes due to gravity, so use the physics/kinematics equation to model the distance. \[y=\frac{ 1 }{ 2 }at^2+v _{0}t+ y _{0}\] a = 32, v0 = 110 sin 35° y0 = 3.5

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Alrighty, that sounds good. Thank you so much!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.