[" Find the magnitude of subtraction "01],[" have the proper units for "r" to be in metres.Find "v(t)" and a(t) of the particle."]

The position of a particle is given by r = 3t hati +2t^(2) hatj +8 hatk where, t is in seconds and the coefficients have the proper units for r to be in metres. (i) Find v (t) and a(t) of the particles. (ii) Find the magnitude and direction of v(t) and a(t) at t = 1s .

The position of a particle is given by r = 3t hati +2t^(2) hatj +8 hatk where, t is in seconds and the coefficients have the proper units for r to be in meters. (i) Find v (t) and a(t) of the particles. (ii) Find the magnitude and direction of v(t) and a(t) at t = 1s .

The position of a particle is given by r=3.0thati+2.0t^(2)hatj+5.0hatk where t is in seconds and the coefficients have the proper units for r to be in matres. (a) Find v (t) and a(t) of the particle . (b) Find the magnitude and direction of v (t) at t=1.0 s.

The position of a particle is given by r=3.0thati+2.0t^(2)hatj+5,0hatk where t is in seconds and the coefficients have the proper units for r to be in matres. (a) Find v (t) and a(t) of the particle . (b) Find the magnitude and direction of v (t) at t=1.0 s.

The position of a particle is given by r=3.0thati + 2.0 t^(2)hatj + 5.0 hatk . Where t is in seconds and the coefficients have the proper units for r to be in metres, (a) Find v(t) and aft) of the particle, (b) Find the magnitude and direction ofv(t) at t = 1.0 s.