In 20 S,a Particle Moving with Constant Acceleration Along the X

Multiple Choice

In 2.0 s,a particle moving with constant acceleration along the x axis goes from x = 10 m to x = 50 m.The velocity at the end of this time interval is 10 m/s.What is the acceleration of the particle?

A) +15 m/s²
B) +20 m/s²
C) -20 m/s²
D) -10 m/s²
E) -15 m/s²