Question

The acceleration of a particle moving only on a horizontal xy plane is given by , where is in meters per second squared and t is in seconds. At t 0, the position vector locates the particle, which then has the velocity vector . At t 4.00 s, what are (a) its position vector in unit-vector notation and (b) the angle between its direction of travel and the positive direction of the x axis

Answer 1

no sure o you hae a formula