The vector position of a particle varies in time according to the expression r = (3.00 i-6.00t2 j) m m. (a) Find expressions for the velocity and acceleration of the particle as functions of time. (b) Determine the particle’s position and velocity at t=1.00 s.

 6. The vector position of a particle varies in time according to the expression r = (3.00 i-6.00t2 j)m. (a) Find expressions for the velocity and acceleration of the particle as functions of time. (b) Determine the particle’s position and velocity at t=1.00 s.