A Particle Starts from Rest at Xi = 0 and Moves

Multiple Choice

A particle starts from rest at xi = 0 and moves for 10 s with an acceleration of +2.0 cm/s². For the next 20 s, the acceleration of the particle is −1.0 cm/s². What is the position of the particle at the end of this motion?

A) zero
B) +3.0 m
C) −1.0 m
D) +2.0 m
E) −3.0 m