please help me with physics homework?

Question

An object is undergoing simple harmonic motion with period 1.200 s and amplitude 0.600 m. At t=0 the object is at x=0. How far is the object from the equilibrium position when t=0.480s? [[[hint the answer is .353 meters]]]

Answer 1

.6sin(2pi/1.2 t) in radians see if that works out

Answer 2

If it's simple harmonic motion the equation for displacement is
s = .6sin(2πt/1.2) so
s = .6sin(2π*.48/1.2) = .6*.5878 = .3526

HTH ☺

Doug