The position of a particle is given by `vecr = 3t hati + 2t^(2) hatj + 5hatk`, where t is in seconds and the coefficients have the proper units for `vecr` to be in metres. The direction of velocity of the particle at `t = 1` s is

Options

A. `53^(@)` with x-axis
B. `37^(@)` with x-axis
C. `30^(@)` with y-axis
D. `60^(@)` with y-axis

Answer

A