In one day, a 70 kgkg mountain climber ascends from the 1500 mm level on a vertical cliff to the top at 2400 mm . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1190 mm .

Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.