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
D
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