Question

parametric equations help

Answer 1

@electrokid can you please solve this

Answer 2

\[\vec{v}(t)=\vec{r'}(t)=(1-\cos t)\hat{i}+\sin t\hat{j}\]
at maxima or minima, the first derivative should be 0. solve for t

Answer 3

what is i and j

Answer 4

the "x" and "y" coodinates.

Answer 5

\(\hat{i},\hat{j}\) are the unit vectors along X and Y axes. This is the representation of a vector in rectangular co-ordinates

Answer 6

i am lost, so how to find v and a?

Answer 7

I showed you "v" above

Answer 8

should i use product rule

Answer 9

is the derivatie of v, 1-cos(t) @electrokid

Answer 10

it is 1-cos(t) for v(t)...

Answer 11

it should have two terms.. one for (i) and one fr (j)

Answer 12

oh i thought i is x and j is y, so i replaced them with x and y and got this

Answer 13

wait is it 1-cos(t) + sin(t) ????