Question

a body oscillates in SHM according to the equation x= 5.0cos(0.40t + 0.10) find the frequency

Answer 1

Your solution x(t) is the general solution to the SHM.
Do you know what each term represents?

Answer 2

mostly

Answer 3

just not how to find the frequency or period

Answer 4

ok...the equation is of the form:
x(t) = A cos(omega*t + phase angle)
so what is omega from the solution?

Answer 5

x= 5.0cos(0.40t + 0.10)
x= A cos(omega*t + phase angle)

omega is...

Answer 6

0.40

Answer 7

w=2pi/t

Answer 8

or w=2pif

Answer 9

that's correct.

Answer 10

then what?

Answer 11

they are asking you to solve for frequency so:
f = omega/2pi
you now know omega

Answer 12

0.4 divided by 2pi?

Answer 13

yes indeed

Answer 14

thanks