If y=acos(wt-kx), \'t\' is time \'x\' is distance . find ? Diamension of \'w\' and \'k\'.

If y=acos(wt-kx), \'t\' is time \'x\' is distance . find ? Diamension

1.	If y=acos(wt-kx), \'t\' is time \'x\' is distance . find ? Diamension of \'w\' and \'k\'.
Answer» W=T^-1 and K=L^-1