Current Attempt in Progress The velocity v of a particle moving in the xy plane is given by V = ( 5.5 1 - 5.0 12 )i + 9.0 j, with v in meters per second and t (> 0) in seconds. At t = 1.4 s and in unit-vector notation, what are (a) the x component and (b) the y component of the acceleration? (c) When (if ever) is the acceleration zero? (d) At what positive time does the speed equal 10 m/s? (a) Number i N. Unit (b) Number Unit (c) Number i Unit (d) Number i Unit e Textbook and Media Hint