Two simple harmonic motions represented by y1 = 5 sin(2π/3t) and y2 = 5 sin(2πt/5). What is the resultant motion?
a) 5 sin(2π/15t)
b) 5 sin(4π/15t)
c) 5 cos(2π/15t)
d) 5 cos(4π/15t)