from the origin at t = 0 with a velocity of d moves in the X-Y plane with a constant ac- of ( 8i+2j) m/s2. At what time is the x-coordi- 17. A particle starts from the origin 10 m/stand moves in the celeration of (81+2) m nate of the particle 16 m - t o vrlo coordi- (1) 1s (2525 & 2+29 (3) 1.5s (4) 3 a-16 at that time - 18. In above problem, what is the y-coordinate of the particle (1) 8 m (2) 16 m (3) 24 m (4) 32m time - In above problem, what is the speed of the particle at that (1) 12.5 m/s (2) 21.2 m/s (3) 26.4 m/s 4) 32.2 m/s