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 paticle, which then has the velocity vector . At t = 3.60 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?

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 paticle, which then has the velocity vector . At t = 3.60 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?

Damon · Answer

In fact you left all the quantities out !

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 paticle, which then has the velocity vector ******************.