1. The problem statement, all variables and given/known data A particle moves along a curve whose equations are: x=3e^(-2t) y=4sin3t z=5cos3t where t is the time. a) Find the velocity and acceleration at any time. b) Find the magnitudes of the velocity and acceleration at time t=0. 2. Relevant equations 3. The attempt at a solution I know that the velocity is d/dt of the position and acceleration is d/dt of velocity. How can i find the velocity? If i take the derivative of all three functions, i will get three different velocities.