A community for students.
Here's the question you clicked on:
 0 viewing
spndsh
 3 years ago
d/dt (a(tsint)ihat + a(1cost)jhat)
spndsh
 3 years ago
d/dt (a(tsint)ihat + a(1cost)jhat)

This Question is Closed

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1You need to differentiate each component of the original vector to get the components of the differentiated vector.

spndsh
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1349560630436:dw is this right?

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1No. 1. You forgot to multiply by the constant a. 2. The derivative of sin is cos, not cos. Try again! :)

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1Nope. Again: 1. You need to write it as a vector. 2. You forgot the a on the ycomponent (jhat). Try again! Don't get discouraged. This takes time to fully understand. ;)

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1Try writing it as (at  a sin t, a  a cos t). It makes it easier for me. Try that for yourself!

spndsh
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1349561042586:dw what about this?

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1There you go! Good job. :)

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1No problem! Do you see the general method of this so that you can do similar problems in the future?

Ahaanomegas
 3 years ago
Best ResponseYou've already chosen the best response.1By the way, you're a good learner, @spndsh (!!!)
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.