Question

which equation can be used to model simple harmonic motion?
A. d=asin(wt)+k
B. d=acos(wt)
C. d=acos [w(t+k)]
D. d=sin(awt)

Answer 1

what is k?

Answer 2

the funktion is A cos(Wt +Phi)

Answer 3

I dont know I dont get it

Answer 4

Phi is the angle

Answer 5

whats that?

Answer 6

well did you make a mistake in the question?

Answer 7

no its like that

Answer 8

ok then we have a problem

Answer 9

if k is the angle then it should be a cos(wt+k)

Answer 10

so thats c?

Answer 11

c is a cos(wt+wk)

Answer 12

w is 2Pi*f and so it cant be right

Answer 13

it can be a then can it?

Answer 14

well it has to be "acos(wt+k)" everything else is wrong

Answer 15

http://en.wikipedia.org/wiki/Simple_harmonic_motion