A 150-kg object takes 1.5 minutes to travel a 2,500-meter straight path. It begins the trip traveling 120 meters per second and decelerates to a velocity of 20 meters per second.

What was its acceleration?

Responses

(A) −1.11 m/s2


(B) −0.3 m/s2


(C) +1.11 m/s2


(D) +80 m/s2