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Warmacblu
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Homework Statement
In a TV set, an electron beam moves with horizontal velocity of 2.5 x 107 across the cathode ray tube and strikes the screen, 40 cm away.
The acceleration of gravity is 9.8 m/s2.
How far does the electron beam fall while traversing this distance? Answer in units of m.
Homework Equations
x = voxt
vy = voy - gt
The Attempt at a Solution
I solved for t:
x = voxt
.04 = 2.5 x 107
t = 1.6 x 10-9
Then I plugged t into vy = voy - gt.
vy = 0 - (9.8)(1.6x10-9)
vy = -1.568x10-8
Now I am not sure if I have the correct values plugged in because I do not think I am supposed to come up with a negative answer. I did draw a picture but am not sure if my math corresponds to the picture.
Any suggestions are appreciated,
Thanks.