a particle is moving in the xy plane with constant acceleration. at t=0, it has a velocity of v=(4.00i-5.00j) m/s. At t=4.00 s, the particle's velocity is v=(3.5i+2.00j) m/s.
1.) what is the speed of the particle at t=0?
2.) determine the acceleration of the particle (magnitude and direction)
3.) how far is the particle from the origin at t= 6.00 s? what is the angle and posistion the vector makes at t= 6.00s with the positive x axis?