(Headbang)

Please help im goin crazy over here i have homework and a test due tomorrow and without help i know im not going to do so well...

so i am stuck on this problem...

There are two particles on the s-axis s1= sin t s2= sin (t + (pi/3))

at what time in the interval 0<t<2pi

I tried finding the derivatives of the two particles then having them = but that didn't seem to work i do not know if i should be graphing or what

thank you so much for your help!!!!