1. The problem statement, all variables and given/known data An object is undergoing simple harmonic motion with frequency f = 3.1 Hz and an amplitude of 0.15 m. At t = 0.00 s the object is at x = 0.00 m. How long does it take the object to go from x = 0.00 m to x = 7.00×10-2 m. 2. Relevant equations x(t)=Asin(ωt) 3. The attempt at a solution The correct answer is 2.49*10-2sec ω=2[itex]\pi[/itex]f=6.2[itex]\pi[/itex] so, i set the following equation: 0.07=0.15sin(6.2[itex]\pi[/itex]t) but i can not solve it without the solving capabilities of a graphics calulator, so i cant use this method. i then set up a similar equation using small angle approximation but in order to get it to the right accuracy i need to include the second term (ie sinθ=θ - θ3/6 but this then turns it into a cubic function (which i dont have the level of math to solve) Is there a different way to go about this question that i am missing? thank you in advance, Michael.