Recent content by 2x2lcallingcq

so I just put the constants in and then solve? I'm still confused.

Problem: Find the position function from the given velocity or acceleration function. a(t) = <e^-3t,t,sint>, v(0)=<4,-2,4>, r(0)=<0,4,-2> Solution: To find the answer the integral must be taken... Integral of a(t) = <-(1/3)e^(-3t), (1/2)t^2, -cos(t)> Since taking it with...

Homework Statement Parametric equations for the motion of an object are given, where x and y are measured in meters and t is in seconds. find the speed of the object in meters per second when t is 2 seconds. x=2cost y=2sinst

Like the y= cos((wt-k)(r+not)) that kind, ehhh? :)

Also how could i go about using the amazing transformations to accomplish this? I don't exactly know how to use the reference frames for waves of light... I could do it if i were measuring boxes or points on a plain but ...

ALSO i should have mentioned that the only direction that is being measured is in the X and Y direction not the Z

I know it is goofy to think of light being so slow - but if that were true... when I walk by you I would be contracting at an alarming rate!

Homework Statement Assume that the speed of light is 3.0m/s - an observer S observes a series of spherical light waves emanating from their fixed origin at time t=0 according to S. The wavelength of the light as seen by S is 1.0m. Another reference frame S' is moving in the positive...