PHYSICS 1B Lecture 3: phys1b lec3

What is the wavelength for the transition 6p to 6s?

A particle moving in the XY-plane has velocity  m/s, where t is in s.

(a) What is the X-component of the particle acceleration vector at t=6s?

(b) What is the Y-component of the particle acceleration vector at t=6s?

can someone tell me the correct answer for this i got 2.88
what i did was
me fred
V ? ?
U 0 6
S 25 25
A ? 0
T ? 25/6

S=ut+0.5at^2
25=.5a(25/6)^2
a=2.88m/s^2


Both time's are going to be equal if I am to catch himat25yards.