Ok I'm guessing this is simple harmonic motion?
I don't understand how these values relate to the displacement at all, can anyone help?
The displacement, d, in cm, of a particle is given by
d = 3 sin(40 π t) – 4 cos( 40 π t ) t ≥ 0
· Find expressions for the velocity and acceleration of the particle
· Calculate the velocity and acceleration when t = 2
· Determine when the particle is first at rest
· Calculate the displacement and acceleration when the particle is at rest
(π = pi)